Patents by Inventor Kunihiko Tsuchiya

Kunihiko Tsuchiya 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: 10652488
    Abstract: An optical-detection element includes a p-type supporting-layer, an n-type buried charge-generation region to implement a photodiode with the supporting-layer, a p-type shield region buried in the buried charge-generation region, a gate insulating-film contacted with the shield region, a transparent electrode on the gate insulating-film, a p-type well region buried in the supporting-layer, and an n+-type charge-readout region buried in the supporting-layer at an edge of the well region toward the buried charge-generation region.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 12, 2020
    Assignees: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi Watanabe, Osamu Ozawa, Kunihiko Tsuchiya, Tomoaki Takeuchi
  • Publication number: 20180302581
    Abstract: An optical-detection element includes a p-type supporting-layer, an n-type buried charge-generation region to implement a photodiode with the supporting-layer, a p-type shield region buried in the buried charge-generation region, a gate insulating-film contacted with the shield region, a transparent electrode on the gate insulating-film, a p-type well region buried in the supporting-layer, and an n+-type charge-readout region buried in the supporting-layer at an edge of the well region toward the buried charge-generation region.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 18, 2018
    Applicants: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi Watanabe, Osamu Ozawa, Kunihiko Tsuchiya, Tomoaki Takeuchi
  • Patent number: 9923006
    Abstract: A radiation tolerant optical detection element includes: a p-type base-body region; a gate insulating film provided on an upper surface of the base-body region; an n-type buried charge-generation region buried in an upper portion of the base-body region; an n-type charge-readout region buried in an upper portion of the base-body region on the inner-contour side of the buried charge-generation region; an n-type reset-drain region buried on the inner-contour side of the charge-readout region; a transparent electrode provided on the gate insulating film above the buried charge-generation region; and a reset-gate electrode provided on a portion of the gate insulating film between the charge-readout region and the reset-drain region.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: March 20, 2018
    Assignees: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi Watanabe, Tomohiro Kamiyanagi, Kunihiko Tsuchiya, Tomoaki Takeuchi
  • Publication number: 20170133419
    Abstract: A radiation tolerant optical detection element includes: a p-type base-body region; a gate insulating film provided on an upper surface of the base-body region; an n-type buried charge-generation region buried in an upper portion of the base-body region; an n-type charge-readout region buried in an upper portion of the base-body region on the inner-contour side of the buried charge-generation region; an n-type reset-drain region buried on the inner-contour side of the charge-readout region; a transparent electrode provided on the gate insulating film above the buried charge-generation region; and a reset-gate electrode provided on a portion of the gate insulating film between the charge-readout region and the reset-drain region.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Applicants: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi WATANABE, Tomohiro KAMIYANAGI, Kunihiko TSUCHIYA, Tomoaki TAKEUCHI
  • Patent number: 9046611
    Abstract: A self-powered gamma detector which can hold the influence of neutron rays to the minimum, and can measure the dose of gamma rays accurately under a high neutron environment in the reactor is disclosed. The self-powered gamma detector has a columnar emitter member; a collector member arranged in surroundings of the emitter member through an insulating member, and the strength of gamma rays is measured by detecting the value of a current which flows between the emitter member and an MI cable connected with the emitter member, and the collector member. Especially, the emitter member consists of pure tungsten (W), whose inevitable impurities is in 0.03 percent by weight or less.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: June 2, 2015
    Assignees: Japan Atomic Energy Agency, Sukegawa Electric Co., Ltd.
    Inventors: Tomoaki Takeuchi, Hiroshi Nagata, Noriaki Ohtsuka, Akira Shibata, Kunihiko Tsuchiya, Kuniaki Miura, Hiroshi Yamamoto
  • Publication number: 20140110578
    Abstract: A self-powered gamma detector which can hold the influence of neutron rays to the minimum, and can measure the dose of gamma rays accurately under a high neutron environment in the reactor is disclosed. The self-powered gamma detector has a columnar emitter member; a collector member arranged in surroundings of the emitter member through an insulating member, and the strength of gamma rays is measured by detecting the value of a current which flows between the emitter member and an MI cable connected with the emitter member, and the collector member. Especially, the emitter member consists of pure tungsten (W), whose inevitable impurities is in 0.03 percent by weight or less.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 24, 2014
    Applicants: SUKEGAWA ELECTRIC CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Tomoaki TAKEUCHI, Hiroshi NAGATA, Noriaki OHTSUKA, Akira SHIBATA, Kunihiko TSUCHIYA, Kuniaki MIURA, Hiroshi YAMAMOTO
  • Publication number: 20130036871
    Abstract: A method of producing high concentrated 99mTc solution has the steps of dissolving 99MoO3 pellet with alkali solution; extracting 99mTc from the dissolved solution with ketone type organic solvent; separating an ketone type organic phase containing 99mTc and an aqueous phase; adsorbing and concentrating the separated ketone type organic phase containing 99mTc after removing impurities, through a basic alumina column for impurity removal and an acidic alumina column for adsorption and concentration connected continuously; and eluting 99mTc from the acidic alumina column to which 99mTc is adsorbed by physiological saline, wherein the alkali solution is 6M-NaOH solution or 6M-KOH solution.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 14, 2013
    Applicant: JAPAN ATOMIC ENERGY AGENCY
    Inventors: Akihiro KIMURA, Kaori NISHIKATA, Kunihiko TSUCHIYA, Masahiro ISHIHARA, Masakazu TANASE, Saburoh FUJISAKI, Akio OHTA
  • Patent number: 6101996
    Abstract: An oil filter unit comprising a housing (4) and a filter element (14) accommodated therein is fitted to an engine (1) via a bracket (3) having a cylindrical holder (5). The housing (4) is secured to the holder (5) by screwing a male screw (19) on its outer circumference to a female screw (17) formed in the inner circumference of the holder (5). A first cut-out (24) is formed across the female screw (17) and a second cut-out (23) is formed across the male screw (19). When these cut-outs (24, 23) meet together, they form a drain passage which drains the oil in the housing (4) to outside. With this construction, the oil in the housing is drained via a predetermined path and prevented from scattering around, when the filter unit is removed from the engine (1).
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: August 15, 2000
    Assignees: Tennex Corporation, Nissan Motor Co., Ltd.
    Inventors: Eriya Arita, Kunihiko Tsuchiya, Katsuya Yamada, Hideki Yamamura, Takeshi Matsunaga
  • Patent number: 4295806
    Abstract: The disclosed rotary compressor includes a wire gauze disposed in its shell to traverse a passage through which a compressed gaseous refrigerant from a delivery tube flows to a discharge tube within the shell. A lubricant included in the compressed refrigerant is separated from the latter by the wire gauze and falls on a sump disposed at the bottom of the housing. Further an L roof-shaped partition may be interposed between the top of a compressor unit and the housing to divide a space around the compressor unit into two space portions in which the delivery and discharge tubes open respectively.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: October 20, 1981
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Naoki Tanaka, Kunihiko Tsuchiya, Toshizo Nishizawa