Nippon Telegraph and Telephone Corporation

Hitachi, Ltd.

Dai Nippon Printing Co., Ltd.

Hitachi Displays, Ltd.

Tohoku University

Shimadzu Corporation

National Institute of Advanced Industrial Science and Technology

Alpine Electronics, Inc.

Sony Corporation

Fujifilm Corporation

Max Co., Ltd.

Shinmaywa Industries, Ltd.

Sony Mobile Communications Japan, Inc.

Tokyo Women's Medical University

Hirosaki University

Makoto Abe

Takashi Kurihara

Norio Sato

Atsushi Aratake

Etsuko Nishimura

Tadayuki Imai

Takuya Tanaka

Kazuo Fujiura

Seiji Toyoda

Masahiro Sasaura

Katsumi Kondo

Shinichi Komura

Osamu Itou

Kota Shikama

Masaaki Kurihara

Katsuyuki Funahata

Yoshiaki Nakayoshi

Hiroshi Ishikawa

Makoto Tsumura

Makoto Yoneya

Masatoshi Wakagi

Akitoyo Konno

Hiroki Kaneko

Yasuyuki Inoue

Osamu Itoh

Kikuo Ono

Masaya Adachi

Toshiaki Tanaka

Ikuo Hiyama

Yusuke Vincent Fujii

Masahiro Ishii

Takaaki Suzuki

Akira Kato

Tatsuya Sugita

Shoichi Hirota

Hiroshi Kajiyama

Kenichi Onisawa

Takanori Yamazoe

Takashi Ichikawa

Junji Tanno

Takashi Saida

Shuichi Sekiya

Takashi Goh

Shin Kamei

Kaoru Katayama

Tetsuya Takamori

Masao Sakai

Manabu Hirakawa

Shogo Yagi

Koji Enbutsu

Eishi Kubota

Makoto Yoshizawa

Norihiro Sugita

Noriyasu Homma

Makoto Sato

Kazuhiro Kuwabara

Takao Fukumitsu

Seiko Mitachi

Akira Himeno

Kenji Okishiro

Masayuki Okuno

Akimasa Kaneko

Satoshi Goishihara

Tomoyuki Yambe

Kenro Hirata

Taketo Kishi

Tsutomu Tanaka

Toshiyuki Takatsuji

Hiroyuki Fujimoto

Akira Tanaka

Kazuaki Baba

Takuya Takahashi

Masayuki Yamato

Katsutoshi Suzuki

Yoshinori Hibino

Takeshi Miitsu

Masanori Maeda

Noboru Yamazaki

Akihiko Noie

Hirokazu Arai

Yoshihiro Takai

Hiroaki Yamada

Kazumasa Takada

Isao Tokomoto

Yusuke Kaga

Takanobu Hori

Nobuo Kishi

Yohei Saito

Nobuo Kanai

Kei Ichiji

Kazuaki Naoe

Ken-ichi Onisawa

Hiroaki Ohmae

Mitsuru Suzuki

Naoki Shibusawa

Xiaoyong Zhang

Yuji Fukuzawa

Shimpei Amasaki

Yoshitaka Tsutsui

Kazuma Obara

An optical connection element includes a first waveguide core and a second waveguide core above a substrate or a cladding and in which signal light and resin curing light propagate through the first waveguide core and the second waveguide core, the optical connection element including: an inter-core light coupling section in which a part of the first waveguide core and a part of the second waveguide core overlap in a perpendicular direction; and a resin curing light coupling section that couples resin curing light to the second waveguide core.

Optical connecting device, optical device, and method for manufacturing optical device

A second core includes a first portion, a second portion, and a bending portion. In the first portion, a wave-guiding direction is a first direction parallel to a plane of a first substrate. In the second portion, a wave-guiding direction is a second direction that is at a predetermined angle with respect to the plane of the first substrate. For example, in the second portion, the wave-guiding direction is the second direction that is at substantially 90 degrees with respect to the plane of the first substrate. The bending portion connects the first portion and the second portion. A relative refractive index difference between the second core and a cladding of the second optical waveguide preferably has a value such that the propagation loss in the bending portion is equal to or smaller than 0.1 dB.

Optical circuit

An optical waveguide alignment method includes a step of covering an end portion of an optical fiber, an end portion of a PLC, and a microlens with an adhesive before curing in a state in which at least one microlens is disposed between incidence and emission end faces of end portions of the optical fiber and the PLC, a step of causing light for alignment to be incident on at least one of the optical fiber or the PLC so that light enters a portion covered with the adhesive between the optical fiber and the PLC, and a step of curing the adhesive after the microlens moves onto an optical path between the optical fiber and the PLC due to radiation pressure of light. The optical fiber and the PLC are optically connected via the adhesive and the microlens, and the optical fiber, the PLC, and the microlens are mechanically connected by the adhesive.

Alignment method for optical waveguide element

In order to sufficiently capture spatial distortion specific to an X-ray CT device and evaluate the three-dimensional shape measurement accuracy of the X-ray CT device, in a utensil, by attaching support rods fixing spheres to the tip thereof and having different lengths to a base spheres are arranged in an XYZ space on the base. On a flat surface on the top of the base, the support rods supporting the spheres and having different lengths are arranged at predetermined intervals. In doing so, the spheres are arranged in the XYZ space respectively at appropriate inter-sphere distances.

Utensil for evaluating length measurement error in X-ray CT device for three-dimensional shape measurement

An optical element that is optically coupled to light inlet/outlet ends of an optical fiber is disposed on a base placed near the light inlet/outlet ends of the optical fiber. Moreover, a rod-like reinforcing member has an integral structure fixed into a first hole formed in the optical fiber and a second hole formed in the base

Optical device

A photoelectric fiber includes a fiber including a core through which light is guided; an electrical unit formed continuously with the fiber, the electrical unit being configured to house a photoelectric conversion chip including a photoelectric conversion element; and an external electrode formed on a front surface of at least one of the fiber or the electrical unit, wherein the photoelectric conversion chip is optically connected to the core and electrically connected to the external electrode.

Photoelectric fiber and communication device

The present invention relates to a therapeutic substance delivery device for delivering a therapeutic substance to a desired site in a bodily duct, characterized in that the therapeutic substance delivery device is provided with: a therapeutic substance loading portion; a connector which is connected to the therapeutic substance loading portion; and a supplying/discharging pipe connected to the connector; and in that the therapeutic substance loading portion includes a main body portion in which a recessed portion is formed, a resilient film, and a connecting pipe; the connector is provided with a joint main body, a flange portion fixed to the other end portion side of the joint main body, and a fixing nut through which the joint main body passes; the joint main body is provided with a tube fastening portion; and at least part of the inner wall of the fixing nut is provided with a thread.

Therapeutic substance delivery device and therapeutic substance delivery kit

A biological information measuring apparatus according to an embodiment includes a calculating unit and a measuring unit. The calculating unit is configured to calculate information related to a pulse wave of a subject, on the basis of luminance information of a picture signal of the subject. The measuring unit is configured to measure a fluctuation of blood pressure of the subject based on an increase or a decrease in the information related to the pulse wave, in accordance with a site of the subject from which the picture signal was obtained.

Biological information measuring apparatus and biological information measuring method, and computer program product

A groove having any length is manufactured in a quartz-based waveguide chip without limitation of a chip size. A marker indicating a planned cutting line extending from a connection end surface of a quartz-based waveguide chip in an in-chip plane direction is formed in advance by processing a core layer of the waveguide of the quartz-based waveguide chip, an irradiation position of laser light is aligned with a position of a starting point of the marker in a state where quartz-based waveguide chip is placed on a stage, and a groove is manufactured in the connection end surface of the quartz-based waveguide chip by moving the stage in the extending direction of the marker while irradiating the quartz-based waveguide chip with the laser light from an upper side.

Method for forming groove in hybrid optical device, and hybrid optical device

In a power storage system equipped with a secondary battery, a control system of the secondary battery includes a unit which detects an index indicating a degradation state of a positive electrode, a unit which detects an index indicating a degradation state of a negative electrode, a unit which calculates a difference between the index of the positive electrode and the index of the negative electrode, a unit which determines a sign of the difference, and a unit which changes an operation condition of the secondary battery according to the sign. With this configuration, in the control of the secondary battery, it is possible to avoid a life estimation accuracy from being decreased while using a processor which has a high-speed processing performance and is inexpensive.

Power storage system, control system of secondary battery, and control method of secondary battery

An image processing device includes: an acquisition unit that acquires a probability distribution of luminance of a pixel in a plurality of perspective images including the luminance of the pixel which is superposition of luminance components resulting from respective objects, based on an occurrence frequency of a perspective image in which the luminance of the pixel has respective values of a plurality of values; a distribution estimation unit that estimates a mixture distribution indicating the acquired probability distribution; a component estimation unit that estimates a component corresponding to a smallest expectation value distribution of which an expectation value is the smallest among a plurality of partial distributions that form the estimated mixture distribution, and forming at least a portion of the luminance of the pixel; a removal unit that removes the estimated component from the luminance of the pixel included in the perspective image.

Image processing device, image processing method, and non-transitory computer-readable recording medium having stored therein image processing program

A secondary battery is disclosed. The secondary battery has a bipolar electrode, an electrolyte layer, and a porous insulator. The bipolar layer includes a positive electrode layer formed on one surface of a collector foil and a negative electrode formed on the other surface of the collector foil. The electrolyte layer is famed at least on a surface of at least one of the positive electrode layer and the negative electrode layer. The porous insulator is formed to a lateral surface of at least one of the positive electrode layer, the negative electrode layer, and the electrolyte layer. The electrolyte layer is laminated by at least one layer relative to the bipolar electrode to configure a bipolar battery. The porous insulator also includes an inorganic particle and a reactive agent for lowering a fluidity of the liquid electrolyte bleeding from the electrolyte layer.

Secondary battery

The present invention provides a pulse wave velocity measurement method and system as well as an imaging device available for everyday use by general users at low cost with measurement accuracy less affected by posture or the like. The present invention simultaneously images different parts of a human body in a non-contact state by a single visible light camera and acquires continuous time series image data. Then, the present invention detects each pulse wave from the image data in the different parts of the human body based on a temporal change in pixel value of the different parts of the human body, and then calculates a pulse wave velocity of the human body based on a time difference between the pulse waves in the different parts of the human body.

Pulse wave velocity measurement method

A navigation apparatus includes a map data storage apparatus which obtains map data needed for drawing an object; a map buffer; a map drawing unit which generates image information corresponding to an object included in a background image on the basis of the map data, and stores the image information in a frame buffer; and a display processing unit which reads out the image information stored in the frame buffer and displays a map image on a display apparatus. The map drawing unit generates shadow image information for a shadow region of the object which is a region sandwiched between an outline of the object and an outline of the object after the object has been moved in a predetermined direction.

Navigation apparatus and method for drawing map

Growing community of inventors

Tokyo, Japan

Makoto Abe