Patents by Inventor Yuji Yamanaka

Yuji Yamanaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190214791
    Abstract: A spark plug for an internal combustion engine that can improve bonding strength between a center electrode and a conductive glass is provided. The spark plug includes a housing, an insulator, a center electrode, a ground electrode, and a conductive glass. The center electrode has a locking portion that is locked from a base end side to a step portion formed on an inner peripheral surface of the insulator, and an electrode head that is closer to the base end side than the locking portion is. A concave portion is partially formed on the tip end surface of the electrode head. A concave contour, which is an outer peripheral contour of the concave portion when viewed in a plug axial direction, forms a closed curve which is spaced apart from a head contour, which is an outer peripheral contour of the base end surface of the electrode head, and surrounds a center axis (B) of the center electrode.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 11, 2019
    Applicant: DENSO CORPORATION
    Inventors: Yuji KAJI, Koji YAMANAKA
  • Publication number: 20190148315
    Abstract: Parallel inductors include a first metal wire (8a or 8b) for connecting a drain terminal (2) and a first metal pattern (7a or 7b), and a second metal wire (10a or 10b) for connecting the first metal pattern (7a or 7b) and a second metal pattern (9a or 9b). The second metal wires (10a and 10b) are each positioned between the corresponding first metal wire (8a or 8b) and a corresponding third metal wire (12a or 12b) for connecting the drain terminal (2) and a third metal pattern (11). The direction of current through the second metal wires (10a and 10b) is opposite to the direction of current through each of the first metal wire (8a or 8b) and the third metal wire (12a or 12b).
    Type: Application
    Filed: July 1, 2016
    Publication date: May 16, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Keigo NAKATANI, Yuji KOMATSUZAKI, Shintaro SHINJO, Koji YAMANAKA, Shohei IMAI
  • Patent number: 10192185
    Abstract: A farmland management system includes an information detection unit configured to acquire information relating to a crop being cultivated, a storage unit configured to store crop registration information for estimating a growth condition of the crop, a growth estimation unit configured to refer to the crop registration information and estimate the growth condition of the crop based on the information relating to the crop and the crop registration information, and a display unit configured to display the growth condition estimated by the growth estimation unit.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 29, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Tomii, Shohei Matsumura, Takashi Noguchi, Kensuke Masuda, Kohji Oshikiri, Takeshi Denda, Hirokazu Takenaka, Yuji Yamanaka
  • Publication number: 20180133375
    Abstract: The purpose of the present invention is to provide a pre-filled syringe formulation with staked needle, which contains an antibody at a high concentration and can be produced on an industrial scale in a simple manner without causing clogging. A pre-filled syringe formulation with staked needle, in which a protein solution is packed. The pre-filled syringe formulation is characterized in that a cap formed with a material having low water vapor permeability is provided at the needle.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 17, 2018
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Rieko SHIOZAKI, Yuji YAMANAKA, Mika TAKAHASHI, Tadao YAMAZAKI, Masakazu FUKUDA, Shogo YAMASHITA
  • Patent number: 9958265
    Abstract: A specimen measuring device includes: a light source device that irradiates a specimen surface of a specimen with illumination light from multiple illumination units at a plurality of illumination angles; a spectral camera device that is arranged above the specimen surface, spectrally separates reflected light from the specimen surface, and acquires 2D spectral information through a single image capturing operation; and a calculating unit that calculates deflection angle spectral information of the specimen surface used to measure a measurement value of a certain evaluation item of the specimen using a change in an optical geometrical condition of an illumination direction and an image capturing direction between pixels in an X axis direction and a Y axis direction of the spectral information.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: May 1, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Sho Nagai, Kensuke Masuda, Go Maruyama, Yuji Yamanaka, Naohiro Kamijo, Kenji Kagitani
  • Patent number: 9840596
    Abstract: A polyphenylene sulfide block copolymer contains polyphenylene sulfide units and polyorganosiloxane units and has a glass-transition temperature in the range of 80° C. or lower and a weight-average molecular weight in the range of 35,000 to 100,000. The polyphenylene sulfide block copolymer has high flexibility as well as high heat resistance and heat aging resistance.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 12, 2017
    Assignee: Toray Industries Inc.
    Inventors: Yuji Yamanaka, Hiroyuki Isago, Kei Saito, Hideki Matsumoto
  • Patent number: 9837845
    Abstract: A charging controlling system includes an input terminal, an output terminal, a battery terminal, and a switch terminal. The charging controlling system includes a coil connected to the switch terminal at a first end thereof. The charging controlling system includes a resistor connected to a second end of the coil at a first end thereof and to the battery terminal at a second end thereof. The charging controlling system includes a capacitor connected between the second end of the coil and the ground. The charging controlling system includes a diode connected to the switch terminal at a cathode thereof and to the ground at an anode thereof. The charging controlling system includes a charging controlling circuit that controls charging of the battery.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 5, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yuji Yamanaka
  • Publication number: 20170197039
    Abstract: Provided is a syringe cap including a projection extending in the circumferential direction of a cap body, wherein the projection includes an apex located radially outward of the cap body from the outer circumferential surface of the cap body, a first inclined surface having a starting end located at the apex and having a terminal end located at a position on the side closer to the proximal end of the cap body than the starting end is, and a second inclined surface having a starting end located at the apex and on the outer circumferential surface of the cap body having a terminal end located at a position on the side closer to the distal end of the cap body than the starting end is, on the outer circumferential surface of the cap body, and the shortest distance from the starting end to the terminal end of the first inclined surface is smaller than the shortest distance from the starting end to the terminal end of the second inclined surface.
    Type: Application
    Filed: June 4, 2015
    Publication date: July 13, 2017
    Applicants: Taisei Kako Co., Ltd., Chugai Seiyaku Kabushiki Kaisha
    Inventors: Rieko Shiozaki, Yuji Yamanaka, Taiji Horita, Ippei Matsumoto, Kensuke Taniguchi
  • Publication number: 20170145165
    Abstract: A polyphenylene sulfide block copolymer contains polyphenylene sulfide units and poly-organosiloxane units and has a glass-transition temperature in the range of 80° C. or lower and a weight-average molecular weight in the range of 35,000 to 100,000. The polyphenylene sulfide block copolymer has high flexibility as well as high heat resistance and heat aging resistance.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 25, 2017
    Inventors: Yuji Yamanaka, Hiroyuki Isago, Kei Saito, Hideki Matsumoto
  • Publication number: 20170118925
    Abstract: An information processing apparatus includes an obtainment unit configured to obtain spectroscopic information generated from image information of a plant captured by an imaging unit; and a generation unit configured to generate a control signal for controlling a degree of water stress of the plant, based on the obtained spectroscopic information.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Takashi NOGUCHI, Kensuke MASUDA, Kohji OSHIKIRI, Takeshi DENDA, Shohei MATSUMURA, Yasuhiro TOMII, Yuji YAMANAKA
  • Patent number: 9638575
    Abstract: A measuring apparatus and a measuring method are provided. The measuring apparatus includes an optical system to condense light, a light receiving device to receive light condensed by the optical system at a plurality of light receiving positions and convert the light into an electric signal, a plurality of optical band-pass filters arranged near a lens stop of the optical system, each of the optical band-pass filters having a different spectral transmittance, a lens array arranged between the optical system and the light receiving device, the lens array having a plurality of lenses each of which is arranged substantially in parallel with a two-dimensional surface of the light receiving device, and a correction unit to correct the electric signal for each one of the plurality of light receiving positions of the light receiving device. The measuring method is performed by the measuring apparatus.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 2, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Yamanaka, Go Maruyama, Kensuke Masuda, Sho Nagai
  • Patent number: 9605944
    Abstract: Disclosed is a distance measuring device including an imaging lens configured to condense incident light from an object, a lens array configured in such a manner that light having passed through the imaging lens is incident thereon, an imaging element array configured to receive light having passed through the lens array to output image information, and a distance calculating part configured to calculate a distance to the object based on the image information, wherein the lens array includes plural lenses with different numeric apertures.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: March 28, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuji Yamanaka, Kensuke Masuda
  • Patent number: 9609292
    Abstract: An imaging device includes a filter unit including filter areas having different wavelength selectivities; a light receiving element array configured to receive light transmitted through the filter unit; a storage unit configured to store, for each filter area, positional information indicating a position at which light transmitted is received on the light receiving element array; an area detector configured to detect, based on the positional information, an image area corresponding to the light transmitted from an image output by the light receiving element array when light from an object enters the filter unit; and a color detector configured to detect a color of the object based on an output value of the image area. The positional information indicates a position on the light receiving element array identified by using a spectral-response-coincidence-degree indicating a degree of coincidence between a spectral responsivity of each pixel and a desired wavelength selectivity.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 28, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Yuji Yamanaka, Kensuke Masuda, Go Maruyama, Sho Nagai
  • Publication number: 20170054325
    Abstract: A non-contact power supply device is used in a processing apparatus including a moving unit movable inside a closed container. The device supplies electric power to the moving unit from outside the closed container. The power supply device includes a feed unit and a heat dissipater. The feed unit includes a feed line and a power supply transformer. The feed line has a feed region arranged inside the closed container along the moving direction of the moving unit. The transformer is arranged inside the closed container so as to be opposed to the feed region in a non-contact manner and is provided so as to move together with the moving unit. The heat dissipater includes a portion on one end side connected to the feed region so as to be capable of conducting heat thereto, and a portion on the other end side extending outside the closed container, so that heat generated in the feed region is partially dissipated outside the closed container.
    Type: Application
    Filed: August 15, 2016
    Publication date: February 23, 2017
    Inventors: Yuji Yamanaka, Mamoru Kosaki, Hideaki Moriya
  • Patent number: 9531963
    Abstract: The image capturing device includes an optical system that focuses lights from an object to generate optical information, a filter provided near a diaphragm position of the optical system, the filter having a plurality of types of spectral characteristics, a sensor that converts the optical information of the object to electronic data, the sensor providing a plurality of spectral transmittance values that sequentially and spatially change, and a lens array having a plurality of lenses being arranged in substantially parallel in a direction of a two-dimensional surface of the sensor.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: December 27, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Yamanaka, Kensuke Masuda, Go Maruyama
  • Patent number: 9420242
    Abstract: An imaging device includes a filter, an imaging element, a lens, a spectral image generator, and an exposure adjuster. The filter includes a plurality of filter areas having different spectral transmission characteristics. The imaging element receives light transmitted through the filter and outputs image information. The lens array includes a plurality of lenses arranged approximately parallel to a light receiving surface of the imaging element and is arranged between the filter and the imaging element. The spectral image generator generates a plurality of spectral images respectively corresponding to the plurality of filter areas on the basis of the image information output by the imaging element. The exposure adjuster adjusts an exposure time of the imaging element on the basis of luminance values of the spectral images.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 16, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Go Maruyama, Kensuke Masuda, Yuji Yamanaka, Sho Nagai
  • Patent number: 9307127
    Abstract: An image capturing device and an image capturing system are provided. The image capturing device includes an optical system, a first filter provided near a diaphragm position of the optical system, a sensor, and a lens array. The first filter includes a plurality of filters respectively having different spectral characteristics. The sensor includes a plurality of filters respectively having different spectral characteristics. The lights from an object pass through the respective filters of the first sensor and the respective filters of the second sensor to simultaneously form a plurality of types of spectral image of the object on an image plane of the sensor.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: April 5, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kensuke Masuda, Yuji Yamanaka, Go Maruyama
  • Publication number: 20160063420
    Abstract: A farmland management system includes an information detection unit configured to acquire information relating to a crop being cultivated, a storage unit configured to store crop registration information for estimating a growth condition of the crop, a growth estimation unit configured to refer to the crop registration information and estimate the growth condition of the crop based on the information relating to the crop and the crop registration information, and a display unit configured to display the growth condition estimated by the growth estimation unit.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yasuhiro TOMII, Shohei MATSUMURA, Takashi NOGUCHI, Kensuke MASUDA, Kohji OSHIKIRI, Takeshi DENDA, Hirokazu TAKENAKA, Yuji YAMANAKA
  • Patent number: 9271346
    Abstract: A lighting power supply device includes a control circuit controlling a transistor that controls a drive current flown through a lamp, receiving a pulsating flow converted from an alternating current by a rectifying circuit rectifying the alternating current subjected to phase control by a phase-controlled dimmer, and generating/outputting direct current voltage/current supplied to the lamp. The control circuit includes a time-voltage conversion circuit converting a time decided according to a phase of a voltage corresponding to the pulsating flow into a voltage; and a terminal to which a capacitor with an arbitrary capacitance value is connectable. The time-voltage conversion circuit allows the capacitor to generate a charging voltage corresponding to the phase of the pulsating flow. A sample-and-hold circuit takes in the charging voltage of the capacitor at predetermined timing corresponding to a change of an output of a voltage comparison circuit, and holds/outputs the taken-in voltage until next timing.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 23, 2016
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Takashi Okubo, Yuji Yamanaka
  • Patent number: D773660
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 6, 2016
    Assignees: CHUGAI SEIYAKU KABUSHIKI KAISHA, TAISEI KAKO CO., LTD.
    Inventors: Rieko Shiozaki, Yuji Yamanaka, Taiji Horita, Ippei Matsumoto, Kensuke Taniguchi