Hitachi, Ltd.

Xanavi Informatics Corporation

Other

The University of Tokyo

Hitachi Construction Machinery Co., Ltd.

Kyocera Medical Corporation

Hitachi Aloka Medical, Ltd.

Tokyo Medical and Dental University

Aloka Co., Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Hitachi Global Storage Technologies Japan, Ltd.

Hitachi Engineering Co., Ltd.

Opnext Japan, Inc.

Mizuho Ika Kogyo Kabushiki Kaisha

Clarion Co

Kozo Nakamura

Yoshinori Endo

Shinya Yuda

Mariko Okude

Hideaki Suzuki

Hiroshi Kawaguchi

Hiroki Uchiyama

Katsuaki Tanaka

Kazuhiko Ishihara

Toru Moro

Yoshio Takatori

Toshimichi Minowa

Hiroshi Kuroda

Masayuki Kyomoto

Ryoichi Sakai

Hideo Hiroshige

Shigeru Matsuo

Masahiko Saito

Kimiya Yamaashi

Hiroshi Takenaga

Tokuji Yoshikawa

Yasuhiro Gunji

Kimiyoshi Machii

Michio Morioka

Yasuyuki Kozima

Tadashi Kamiwaki

Tomohiro Konno

Mitsuru Nakamura

Munetoshi Unuma

Takaharu Ishida

Yoshinori Furuno

Hiroto Morizane

Eiichi Minagawa

Koji Ogawa

Isao Ohnishi

Noboru Yamawaki

Isao Onishi

Koichi Miyasaka

Hiroshi Ohno

Atsushi Saito

Kazuaki Takano

Masaru Murashita

Ryoichi Komuro

Satoru Ohashi

Toshio Fujiwara

Yasushi Yokosuka

Akimitsu Harada

Ryosuke Shigemi

Yasuhiko Iwasaki

Toshiro Uehara

Ichiro Hondo

Kagehiro Yamamoto

Takashi Watanabe

Shigeo Nakamura

Masaru Suzuki

Satoru Kuragaki

Toshio Manaka

Takashi Nakahara

Toshimi Yokota

Mikio Tokuyama

Mitsuo Kayano

Kazuo Watanabe

Takayuki Uchida

Naoki Satoh

Takao Umeda

Toru Miyasaka

Yukihiro Kawamata

Keisuke Nakashima

Kenji Araki

Takashi Yamaguchi

Yasuyuki Kojima

Hirotaka Takahashi

Takashi Saeki

Junsuke Fujiwara

Nagaharu Hamada

Tomoaki Nakamura

Yoshiharu Saito

Hiroshi Ogura

Yoshibumi Fukuda

Yoshitaka Atarashi

Masahiro Takahashi

Johji Mamiya

Hideki Hayashi

Hiroshi Matsuzawa

Hiroyuki Kohida

Takeshi Nizuka

Tomiharu Matsushita

Kazuhiko Takaoka

Hirohisa Miyazawa

Norifumi Yanai

Takeshi Asai

Mitsuo Aihara

Toru Takei

Teruo Nakamura

Mitsuo Sato

Seizi Maruo

Makoto Kondo

Nobuyoshi Hirowatari

Jyunsuke Fujiwara

The maintenance management deviceincludes an error status diagnosis unit, a grace period estimation unit, a maintenance cost estimation unit, and a screen display unit. When the error status diagnosis unithas diagnosed the occurrence of an anomaly, the grace period estimation unitestimates a first grace period leading up to the occurrence of a failure. The maintenance cost estimation unitestimates the cost of corrective maintenance incurred when the failure occurs after the elapse of the first grace period. The screen display unitdisplays a combination of the first grace period and the cost of corrective maintenance. Alternatively, the grace period estimation unitestimates a second grace period over which preventive maintenance may be postponed without a failure.

Maintenance management device for operating machinery

An object of the present invention is to provide an abnormality diagnostic system that can enhance diagnostic precision even if a computer arranged on the machine side does not have sufficient throughput in diagnosing a condition of a machine or equipment based upon time series data generated by a sensor and can reduce communication capacity because communication data volume decreases and industrial machinery provided with the abnormality diagnostic system. A diagnostic device on the machine sidediagnoses time series data generated by a sensor, acquires a primary diagnostic result, extracts time series data related to the primary diagnostic result and outputs it to a diagnostic device on the server sidetogether with the primary diagnostic result, the diagnostic device on the server sidediagnoses the time series data, acquires a secondary diagnostic result, and displays the secondary diagnostic result together with the primary diagnostic result. Besides, the diagnostic device on the server side compares the diagnostic results and updates a diagnostic process of the diagnostic device on the machine sidewhen the diagnostic results are different as a result of the comparison.

Abnormality diagnostic system and industrial machinery

A hydraulic shovel includes: a storage unit which stores an operation history of a target component of the shovel targeted for life span estimation, a discrimination threshold value used for classifying usage of the target component into a plurality of usage modes based on the operation history, and a usage mode-specific estimated life span indicative of an estimated life span of the target component in each of the usage modes; and an arithmetic and control unit which calculates an operating time of the target component in each of the usage modes in accordance with the operation history and the discrimination threshold value, and estimates the life span of the target component based on the operating time calculated for each of the usage modes and on the usage mode-specific estimated life span.

Operating machine and maintenance and inspection information generating apparatus

An object is to provide a medical device having excellent antithrombotic and sliding characteristics, which can exert a cell adhesion inhibitory effect. A medical device comprising: a substrate capable of forming hydroxyl groups; and a biocompatible material layer laminated on the substrate at an appropriate position, wherein the hydroxyl groups are formed on a surface of the substrate at least at a required position by a surface treatment, while the biocompatible material layer is formed from a polymer containing phosphorylcholine groups, and wherein the substrate and the biocompatible material layer are joined via a binder layer formed from silica being covalently bonded with the hydroxyl groups and the biocompatible material, respectively.

Medical device and method for producing the same

The object of the present invention is to provide a sliding member, a prosthesis and a method of producing the sliding member, which can suppress production of abrasive wear debris by suppressing friction of the sliding section, and also can maintain satisfactory mechanical characteristics in vivo. A sliding member comprising: a substratecapable of forming hydroxyl groups; and a biocompatible material layerlaminated on appropriate sections of the substrate, wherein hydroxyl groups are formed on at least a required section of a surface of the substrateby surface treating to form a surface-treated layer, while the biocompatible material layeris formed from a polymer containing phosphorylcholine groups, and wherein the substrateand the biocompatible material layerare joined via a binder layerformed from silica being covalently bonded with the hydroxyl groups and the biocompatible material, respectively.

Biocompatible and low-abrasion member, and artificial joint using the same and method of producing the same

The invention is related to a system and a method to determine whether a target equipment deviates from a normal state. If it is determined that the target equipment to be diagnosed deviates from the normal state, the degree of deviation of each parameter from the normal state as the reference is calculated as an abnormal contribution ratio. A failure cause is estimated from a similarity ratio between the calculated abnormal contribution ratio and the abnormal contribution ratio of each of the failure causes collected in the past and including failure phenomena and failure parts.

Failure cause diagnosis system and method

A learning diagnostic system for a working machine is capable of making a fault diagnosis of the working machine universally relative to various types of sensor information, and preventing a failure in the working machine by enabling a fault diagnosis even in a transient operating state that represents a transitional state between operating states. A state learning devicesorts inputted sensor datainto one under a steady operating state and one under a transient operating state, and generates, through learning, steady state dataand intermediate state data, each including a permissible error. A state diagnostic deviceuses the steady state datato determine whether an operating state of the working machine related to the inputted sensor data is the steady operating state or the transient operating state, and make a fault determination in the steady operating state. The state diagnostic devicealso uses the intermediate state datato make a fault determination in the determined transient operating state. The intermediate state dataalso includes intermediate point information.

Learning diagnostic system, state diagnostic device, and state learning device for working machine

A construction machine diagnosis system is provided. A diagnosis deviceacquires diagnostic data from a diagnostic data storage device, extracts data characteristics from the information contained in the diagnostic data, acquires from a diagnostic knowledge storage deviceany diagnosing techniques considered to be effective for the data characteristics, and presents to a user the diagnosing techniques along with respective degrees of effectiveness. The user uses the presented degrees of effectiveness to select a desired diagnosing technique and conduct a diagnosis. In addition, in order to make effective use of the diagnostic knowledge stored within the diagnostic knowledge storage device, a diagnostic knowledge generating sectionclassifies common data characteristics by elements of diagnosing techniques and stores the classified data characteristics and the elements of the diagnosing techniques, as new diagnostic knowledge.

Diagnosis system and diagnosis method for construction machine

The present invention provides a bearing material that is excellent in durability and is capable of maintaining wear resistance over a long period of time. The bearing material of the present invention is a high wear-resistance bearing materialfor being used under a humid environment comprising: a base bodymade of a polymer material having a methylene group; and a polymer layercovering a bearing surfaceof the substrate, the polymer layercomprising polymer chains which have a phosphorylcholine group and are grafted from the bearing surface, wherein a phosphoric index of the sliding surfacewhich is calculated by dividing a peak intensity of phosphate group in an infrared spectrum measured on the sliding surface by a peak intensity of the methylene group therein is not less than 0.28.

High wear-resistant bearing material and artificial joint replacement using the same

The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.

Biomaterial, joint prosthesis using the biomaterial and method of producing the same

A maintenance operation instance collection apparatus includes: a storage unit that includes a maintenance operation instance database in which operation information obtained from a device via a sensor and maintenance information on a measure to deal with the operation information corresponding thereto are stored in association with each other; and a control unit that receives an input of new operation information, receives an input of new maintenance information, searches the maintenance operation instance database using the newly-received maintenance information as a search key, acquires searched operation information, compares the newly-received operation information to the acquired operation information, determines whether or not the newly-received operation information is close to the acquired operation information in such a degree of satisfying a prescribed criterion, and, if the newly-received operation information is not determined to be close to the acquired operation information, prompts a re-input of the newly-received maintenance information.

Maintenance operation instance collection apparatus, maintenance operation instance collection method, and maintenance operation instance collection program

Monitoring and diagnosing device including: a classification information storage section; frequency information storage section: a first data classifier section reading out reference classification information from the classification information storage section, comparing operational data, detected by a plurality of sensors and inputted in time sequence, with the reference classification information to classify the operational data, and then generating operational data classification information; a frequency comparator section compiling the operational data classification information, generating operational data frequency information by adding, to the operational data classification information, appearance frequency information for each classification of operational data, reading out reference frequency information from the frequency information storage section, and then generating operational data frequency comparison information by comparing operational data frequency information with the reference frequency information; and an abnormality diagnosing section performing an abnormality diagnosis upon the working machine by use of the operational data classification information and operational data frequency comparison information.

Monitoring and diagnosing device for working machine

An acoustic matching device has a water bag () that contains water and a water bag support frame () that sandwiches and supports the water bag on the left and right sides of the knee and curves along the knee cap. The water bag becomes a plate shape curved along the shape of the water bag support frame, which touches the knee cap and fits the unevenness of the knee. When an ultrasonic probe is moved along the knee cap, the acoustic matching between the knee cap and the ultrasonic probe is obtained.

Knee acoustic matching device for ultrasonic probe

A mounting unit () is aligned by using a mounting unit frame () touching the thigh and a knee-contacting portion () touching the knee, with the knee being bent. The mounting unit is also equipped with a probe support frame () used for moving an ultrasonic probe along the knee cap. The probe support frame moves rotationally about the mechanical center of the knee joint, thereby allowing the ultrasonic probe () to move along the knee cap while facing toward the mechanical center of the knee joint and to perform scanning of an ultrasonic beam.

Ultrasonic probe support device

Growing community of inventors

Hitachiota, Japan

Kozo Nakamura