Patents by Inventor Keiji Yamamoto

Keiji Yamamoto 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).

  • Patent number: 10418397
    Abstract: A solid-state imaging device includes pixels each having a photoelectric conversion element for converting incident light to an electric signal, color filters associated with the pixels and having a plurality of color filter components, microlenses converging the incident light through the color filters to the photoelectric conversion elements, a light shielding film disposed between the color filter components of the color filters, and a nonplanarized adhesive film provided between the color filters and the light shielding film.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 17, 2019
    Assignee: Sony Corporation
    Inventors: Tomoharu Ogita, Atsushi Yamamoto, Keiji Tatani, Yoichi Ootsuka, Kiyotaka Tabuchi
  • Patent number: 10385052
    Abstract: Novel tricyclic compounds which have JAK inhibitory activities are useful for prevention, treatment or improvement of autoimmune diseases, inflammatory diseases and allergic diseases are provided. Novel tricyclic compound represented by the formula (I), the formula (II) or the formula (III) (wherein: each of A1, A2 and A3 is a cyclohexane-1,4-diyl group or the like; each of L1, L2 and L3 is a methylene group or the like; each of X1 and X3 is O or NH; each of R1 and R3 is a cyano C1-6 haloalkyl group or the like; and R2 is an aromatic heterocyclic group), a tautomer or pharmaceutically acceptable salt of the compound or a solvate thereof.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 20, 2019
    Assignee: Nissan Chemical Corporation
    Inventors: Tsuneo Watanabe, Keiji Takahashi, Keishi Hayashi, Takanori Nakamura, Masataka Minami, Kazunori Kurihara, Akio Yamamoto, Takuya Nishimura, Miyuki Uni, Toshihiko Kamiyama, Shunsuke Iwamoto
  • Publication number: 20190221117
    Abstract: An agent cooperation system includes a first agent configured to acquire information on a driving attribute of a first driver in a first vehicle; and a second agent configured to notify a second driver in a second vehicle about driving assistance information derived based on the information on the driving attribute of the first driver acquired by the first agent.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 18, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Kume, Keiji Yamamoto
  • Publication number: 20190221118
    Abstract: A cooperation method between agents includes allowing a first agent installed on a first vehicle and a second agent installed on a second vehicle to cooperate with each other, specifying first information regarding future driving of a first driver aboard the first vehicle, by the first agent, acquiring the first information, by the second agent, and notifying a second driver aboard the second vehicle of first driving assistance information derived based on the first information.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 18, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Kume, Keiji Yamamoto
  • Patent number: 10295743
    Abstract: Disclosed is an optical semiconductor device which can be improved in light shift precision and restrained from undergoing a loss in light transmission. In this device, an inner side-surface of a first optical coupling portion of an optical coupling region and an inner side-surface of a second optical coupling portion of the region are increased in line edge roughness. This manner makes light coupling ease from a first to second optical waveguide. By contrast, the following are decreased in line edge roughness: an outer side-surface of the first optical coupling portion of the optical coupling region; an outer side-surface of the second optical coupling portion of the region; two opposed side-surfaces of a portion of the first optical waveguide, the portion being any portion other than the region; and two opposed side-surfaces of a portion of the second optical waveguide, the portion being any portion other than the region.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: May 21, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hiroyuki Kunishima, Yasutaka Nakashiba, Masaru Wakabayashi, Shinichi Watanuki, Ken Ozawa, Tatsuya Usami, Yoshiaki Yamamoto, Keiji Sakamoto
  • Patent number: 10291429
    Abstract: A control device according to an embodiment includes a calculator, a changing unit, and a transmitter. The calculator calculates a first communication volume obtained by adding a value obtained by normalizing a communication volume of a voice call of a first terminal and a value obtained by normalizing a communication volume of data communication of the first terminal on the basis of a first history of the voice call of the first terminal and a second history of the data communication of the first terminal. The changing unit changes a first upper limit of a third priority obtained by adding a first priority set to the voice call of the first terminal and a second priority set to the data communication of the first terminal on the basis of the first communication volume.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 14, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Taichi Tashiro, Keiji Yamamoto, Kazuya Negishi, Kohta Nakamura
  • Publication number: 20180302801
    Abstract: A communication system according to one embodiment manages wireless communication via an antenna capable of communicating with a plurality of terminals within a predetermined area. The communication system includes an analyzer and a controller. The analyzer is configured to analyze first information and second information and to specify an uncommunicable terminal from the terminals based on an analysis result. The first information is information registered in advance as positional information of the terminals within the predetermined area. The second information is predetermined information acquirable from the terminals. The uncommunicable terminal is a terminal located at a position where communication with the antenna is not possible.
    Type: Application
    Filed: November 19, 2015
    Publication date: October 18, 2018
    Inventors: Kohta NAKAMURA, Katsumi KUSAMA, Taichi TASHIRO, Manabu MUKAI, Keiji YAMAMOTO
  • Publication number: 20180164681
    Abstract: Provided are a coloring photosensitive composition that is curable in a low-temperature environment, as well as a cured film, a color filter, a light-shielding film, a solid-state imaging device, an image display device, and a method for producing a cured film, in which the coloring photosensitive composition is used. The coloring photosensitive composition contains a coloring agent, a polymerizable compound, and a photopolymerization initiator, in which the photopolymerization initiator in the form of a solution in which 0.001% by mass of the photopolymerization initiator is dissolved in acetonitrile has an absorbance of 0.45 or more at a wavelength of 340 nm.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya KAMIMURA, Daisuke HAMADA, Yushi KANEKO, Makoto KUBOTA, Keiji YAMAMOTO
  • Patent number: 9993896
    Abstract: A laser welding method for welding materials having different thicknesses includes abutting two plates having different thicknesses such that one surface of the thin plate and one surface the thick plate are made flush with each other; and thereafter welding the plates by applying a laser beam to abutting surfaces thereof, wherein the laser beam is directed obliquely relative to an abutting end face of the thick plate, a target position of the laser beam is determined on the abutting end face of the thick plate, and a target position depth D on the abutting end face of the thick plate is determined based on the formula t/3?D?t where t is a thickness of the abutting end face of the thin plate.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: June 12, 2018
    Assignee: NISSHIN STEEL CO., LTD.
    Inventors: Kazuaki Hosomi, Kenji Ogawa, Takefumi Nakako, Keiji Yamamoto
  • Publication number: 20180136379
    Abstract: Provided are a laminate having an antireflection layer including inorganic particles, and an infrared light reflecting layer, in which the infrared light reflecting layer includes a first selective reflection layer which is formed by fixing a liquid crystal phase having a helical axis which rotates in a right direction, and a second selective reflection layer which is formed by fixing a liquid crystal phase having a helical axis which rotates in a left direction, a method for producing the laminate, a solid-state imaging device including the laminate, and a kit used for producing the laminate.
    Type: Application
    Filed: December 25, 2017
    Publication date: May 17, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Hirotaka TAKISHITA, Kazuto SHIMADA, Keisuke ARIMURA, Takahiro OKAWARA, Daisuke SASAKI, Keiji YAMAMOTO, Masaru YOSHIKAWA, Ryoji GOTO
  • Publication number: 20180076977
    Abstract: A control device according to an embodiment includes a calculator, a changing unit, and a transmitter. The calculator calculates a first communication volume obtained by adding a value obtained by normalizing a communication volume of a voice call of a first terminal and a value obtained by normalizing a communication volume of data communication of the first terminal on the basis of a first history of the voice call of the first terminal and a second history of the data communication of the first terminal. The changing unit changes a first upper limit of a third priority obtained by adding a first priority set to the voice call of the first terminal and a second priority set to the data communication of the first terminal on the basis of the first communication volume.
    Type: Application
    Filed: January 13, 2016
    Publication date: March 15, 2018
    Inventors: Taichi TASHIRO, Keiji YAMAMOTO, Kazuya NEGISHI, Kohta NAKAMURA
  • Publication number: 20170297145
    Abstract: Provided is a laser welding method of materials having different thicknesses that can achieve excellent weld strength regardless of the thickness of a thick plate, and a welded member having different thicknesses.
    Type: Application
    Filed: June 1, 2015
    Publication date: October 19, 2017
    Inventors: Kazuaki HOSOMI, Kenji OGAWA, Takefumi NAKAKO, Keiji YAMAMOTO
  • Patent number: 9730142
    Abstract: A wireless communication device transmits data to a relay destination being one of first relaying devices capable of communicating out of relaying devices; obtains first information, from each first relaying device, that indicates a representative value of remaining operating times of relaying devices present on a relay route from the first relaying device to a target device; determines to perform a new route search, based on the first information; increases a transmission power; then transmits a request; receive responses from all or a part of second relaying devices, which are relaying devices that have received the request, including pieces of second information each of which indicates a representative value of remaining operating times of relaying devices present on a relay route from the second relaying device to the target device; and selects a relay destination of data from among the second relaying devices based on the pieces of second information.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 8, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaomi Murakami, Shinya Murai, Takeshi Ishihara, Ren Sakata, Cam Ly Nguyen, Tatsuma Hirano, Toshiyuki Nakanishi, Keiji Yamamoto
  • Patent number: 9637649
    Abstract: A curable resin composition, for forming a first optical member of an optical member set, the optical member having the first optical member and a second optical member covered with the first optical member, the first optical member being formed by curing a siloxane resin, comprising: a siloxane resin, a surfactant, and a solvent, the siloxane resin and the surfactant being contained in the solvent, the surfactant having a polyoxyalkylene structure, the siloxane resin being defined in 65% by mass to 100% by mass thereof having a particular polysilsesquioxane structure.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: May 2, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Yamamoto, Kazuto Shimada, Makoto Kubota
  • Patent number: 9625618
    Abstract: An optical member set which has a first optical member formed by curing a composition of curable resins, and a second optical member which is covered by the first optical member, in which the contact angle with water on a surface, which comes into contact with a first optical member, of the second optical member is 70 to 97° and the contact angle with the water on a surface of the opposite side to the side, which comes into contact with the second optical member, of the first optical member is 80 to 115°.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 18, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Yamamoto, Kazuto Shimada, Hideki Takakuwa, Makoto Kubota
  • Publication number: 20170090083
    Abstract: A laminate includes a first area formed by applying a first composition and a second area formed by applying a second composition on a surface of the first area, and a difference between refractive indexes of the first area and the second area is 0.5 or greater, and the first areas and the second areas are alternately laminated.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Hirotaka TAKISHITA, Keiji YAMAMOTO, Hideki TAKAKUWA, Keisuke ARIMURA, Kazuto SHIMADA
  • Publication number: 20170078038
    Abstract: According to an embodiment, a clock synchronization management device includes an accuracy evaluation unit and a network formation unit. The accuracy evaluation unit evaluates the accuracy of a clock for synchronization with respect to each of devices constituting a decentralization system and classifies each of the devices into a plurality of divisions based on whether each of the devices is capable of supplying at least the clock for synchronization to another device. The network formation unit identifies a device capable of supplying the clock for synchronization based on a classification by the accuracy evaluation unit and causes a device incapable of supplying the clock for synchronization to another device to synchronize with the identified device.
    Type: Application
    Filed: December 8, 2014
    Publication date: March 16, 2017
    Inventors: Taichi TASHIRO, Keiji YAMAMOTO, Masashi ISHIDA, Kohta NAKAMURA
  • Patent number: 9556588
    Abstract: A floor member includes a floor plate extending in a length direction along a front-rear direction of a cab. The floor plate includes front-left corner portion, front-right corner portion, rear-left corner portion, and rear-right corner portion; a first vertical beam member; a second vertical beam member; and a plurality of support members which support the first vertical beam member, the second vertical beam member, and the floor plate in respective regions including a region where the front-left corner portion and a first front end overlap each other, a region where the rear-left corner portion and a first rear end overlap each other, a region where the front-right corner portion and a second front end overlap each other, and a region where the rear-right corner portion and a second rear end overlap each other.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: January 31, 2017
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Koji Fujikawa, Keiji Yamamoto, Yasumitsu Fujii
  • Patent number: 9481979
    Abstract: Provided is a working machine including a console box restrained from wobble. The working machine includes a machine body having an operator's seat and a console box at a side of the operator's seat. The console box includes a box body and a box cover covering the box body. The box cover internally includes a first cover half installed on the box body with first fitting portions and a second cover half internally including second fitting portions fitted with the respective first fitting portions. The second cover half abuts on the first cover half and coupled to the first cover half by respective interfittings of the first and second fitting portions. The box body includes a support portion making contact with an inner surface of the second cover half to support the second cover half.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 1, 2016
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yukio Hiraoka, Keiji Yamamoto
  • Publication number: 20160302220
    Abstract: According to an embodiment, a wireless communication device includes wireless section, storage, controller, confirmer and modifier. The wireless section executes a communication task in which the wireless communication device transmits and receives a wireless signal to and from another device. The storage stores schedule information indicative of a time when the communication task is permitted to be executed. The controller controls execution of the communication task based on the schedule information. The confirmer confirms a reception response from the another device. The modifier modifies the schedule information based on a result for the reception response from the confirmer.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi NAKATANI, Naoya OHNISHI, Tooru TAKANAKA, Keiji YAMAMOTO, Jumpei OGAWA, Makoto OCHIAI