Shinmaywa Industries, Ltd.

Nisshin Steel Co., Ltd.

Mitsubishi Electric Corporation

Kobe University

Nippon Steel Nisshin Co., Ltd.

Akihiro Ando

Arata Funasaka

Yasuyuki Nishi

Junya Enomoto

Yasuhide Okazaki

Terumasa Okizoe

Kazuki Takeuchi

Nobukazu Tanaka

Shinobu Karino

Seiji Kawaguchi

Satoshi Mashita

Hidenori Ishibashi

Kouki Tomimura

Tetsu Owada

Jun Kurobe

Hironobu Shibata

Motonobu Tarui

Shinnosuke Nishijima

Katsuhide Nishio

Kenji Hara

Kazushi Sakamoto

Ryosuke Matsubara

Masahiko Hayashi

Chikara Takebe

Koichi Tamura

Yoichi Tamaki

Hiromasa Shimizu

Shiro Fukami

Shogo Ueda

Hideyuki Kato

A storage unit is configured to store a drive electric current of a submersible pump detected by an electric current detection unit. An identification unit is configured to calculate at least one electric current parameter of a plurality of electric current parameter based on the temporal change of the drive electric current and identify an operation state indicating whether there is an abnormality in the submersible pump and a type of an abnormal operation, based on the electric current parameter.

Submersible pump system, information processing device, and computer program

The present invention provides: a furoxan compound having a fluorine atom as a substituent group on the ring structure thereof; and a novel nitric oxide donor including the compound. The present invention relates to a fluorofuroxan compound represented by general formula (1) or (2). The compound of formula (1) can be manufactured by reacting a fluoride salt with a nitrofuroxan compound to substitute the nitro group with a fluoro group. The compound of formula (2) can be manufactured by subjecting the compounds of formula (1) to isomerization by irradiation with light. 

Furoxan compound, and manufacturing method for same

Input/output terminalsandare formed within portions of cutoutsandprovided in a ground conductoron the underside of a magnetic material; signal conductorsandare formed within portions of cutoutsandprovided in a ground conductoron the top surface of a dielectric substrateat the same places as the cutoutsandof the ground conductor; through holesandelectrically connect a center conductorto the input/output terminalsand; metal bumpsandelectrically connect the input/output terminalsandto the signal conductorsandfacing each other; and metal bumpselectrically connect the ground conductorto the ground conductor

Non-reciprocal circuit

Provided is a method of forming a locking ridge for a case of forming the locking ridge on an outer peripheral surface of a joint portion by form rolling, the method realizing a joint portion structure which is superior in pipe detachment prevention performance when pipes with locking ridges are connected by fixing pipe ends with a housing. Using a convex roller arranged inside the workpiece pipe body and a forming circular groove arranged outside the pipe body, the locking ridge is form-rolled such that an upright wall portion thereof is raised at an angle of at least 65&#xb0; and no greater than 90&#xb0; with respect to the outer peripheral surface in the pipe axis direction, and that a height of the locking ridge from the outer peripheral surface to the apex of the tip portion is at least a total of curvature radii of faces of the processing means in contact with the pipe body.

Form rolling method for joint portion of fluid supply pipe and fluid supply pipe

A spinning method for forming pipe bodies of varying diameter. In the spinning method, when a necked portion is formed at the end of the pipe material by the spinning method, working rollers are restricted so as to return immediately before the pipe end instead of being allowed to axially move beyond the end of the working object pipe. The amount of diameter reduction at the pipe end is set to be smaller than that of the most diameter reduced portion connecting to the pipe end. A protruding portion of a so-called bellmouth shape is formed at the working end, thereby preventing generation of fractures originating at the working end of the base portion or the welded portion and generation of wrinkles during the spinning process.

Spinning method for forming pipe end

Provided is a spinning method of reducing a diameter of a work piece pipe body with processing rollers disposed on an outer surface of the work piece pipe body, the processing rollers being configured to be relatively revolved around the work piece pipe body, wherein, when the processing rollers are axially reciprocated while being moved in a radius direction of the work piece pipe body, wherein the diameter reducing process with the processing rollers is performed under a state in which a wound body formed of an elastic sheet-like material is inserted as a core body into the inside of a portion of the work piece pipe body to be subjected to the diameter reducing processing.

Spinning method for forming a diameter reduced portion

An example impeller includes: an impeller body in which an internal channel is formed, the internal channel extending inside the impeller body in a direction of a rotation axis spirally about the rotation axis to connect an inlet and an outlet; and at least one centrifugal vane provided in the impeller body. The internal channel including the inlet and the outlet has a predetermined passage diameter. An external channel is formed so as to continue to the outlet and go around the circumferential surface of the impeller body, the external channel being defined by the centrifugal vane and being recessed inward in the radial direction from the circumferential surface of the impeller body. At least a part in a flow direction of the external channel has a channel width in the direction of the rotation axis smaller than the width of the outlet.

Impeller and centrifugal pump including the same

In an impeller, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inletis formed in the lower part of the inlet portion, and an outlet is formed in the side face of the outlet portion. The inlet portion and the outlet portion are partitioned by a flange portion. The impeller 11 includes a primary vaneand a secondary vane. The primary vanedefines a spiral primary channelthat connects the inletand the outlet. The secondary vaneis formed in a shape that a part of the outer periphery of the outlet portion is gouged inward so as to define a secondary channelconnected to the primary channeland extending circumferentially around the outer periphery.

Impeller and sewage treatment pump including the same

Pump impeller

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Hyogo, Japan

Akihiro Ando