Patents by Inventor Tatsuya Takahashi

Tatsuya Takahashi 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: 20180272538
    Abstract: A system includes: an illumination device; and an imaging device configured to capture an image of a target which is irradiated with light by the illumination device. The illumination device includes: a light emitting unit configured to emit first polarized light; a condensing unit configured to focus light emitted from the light emitting unit; a diffusion unit configured to diffuse the light focused by the condensing unit; and a uniformization optical system configured to receive the light diffused by the diffusion unit, uniformize an illuminance distribution of the light, and emit the light. The system further comprising including a selective transmission unit provided on an optical path from the target to an imaging element of the imaging device and configured to block the first polarized light at a predetermined blocking ratio.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 27, 2018
    Inventors: Tatsuya TAKAHASHI, Kazuhiro FUJITA, Go MARUYAMA
  • Patent number: 10073333
    Abstract: A light irradiation device for emitting light of two or more components by laser light, which a laser light source emits, to an outside, includes a diffusion optical path change member configured to convert a first color component of the laser light into diffusion light and change an optical path of the first color component; a phosphor configured to generate fluorescence of a second color component different from the first color component based on the laser light, and change an optical path of the second color component; and an optical path switch member configured to switch between a first optical path for emitting the first color component to the outside and a second optical path for emitting the second color component to the outside. Light going straight at a light diffusion position of the diffusion optical path change member is not emitted to the outside.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: September 11, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takehiro Nishimori, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Junichi Kitabayashi, Kaoru Itoh, Makoto Hirakawa
  • Publication number: 20180241072
    Abstract: Provided are: a nonaqueous electrolyte secondary battery positive electrode active material that has high crystallinity, that causes less amount of Mn deposition on a negative electrode, and that can form a secondary battery having excellent cycle characteristics; and a nonaqueous electrolyte secondary battery using the nonaqueous electrolyte secondary battery positive electrode active material. The nonaqueous electrolyte secondary battery positive electrode active material according to the present invention is formed of a lithium-manganese-nickel complex oxide including a spinel-type crystal structure, wherein the lithium-manganese-nickel complex oxide has a crystallite diameter not smaller than 1000 ? and is formed of primary particles that have a polyhedron shape having more than eight surfaces. The proportion of ungrown particles not having the polyhedron shape of the primary particles in the lithium-manganese-nickel complex oxide is preferably not higher than 5%.
    Type: Application
    Filed: August 22, 2016
    Publication date: August 23, 2018
    Inventors: Tatsuya Takahashi, Ryosuke Okamoto
  • Publication number: 20180205079
    Abstract: A manganese nickel composite hydroxide which serves as a starting material for positive electrode active materials for secondary batteries, and the secondary battery having low resistance and high output characteristics. A manganese nickel composite hydroxide according to the present invention is represented by general formula (A) Mn1?x?yNixMy(OH)2+? (wherein 0?×?0.27, 0?y?0.05, 0???0.5, and M represents at least one element selected from among Mg, Al, Ca, Ba, Sr, Ti, V, Fe, Cr, Co, Cu, Zr, Nb, Mo and W), and has an SO4 content of 0.90% by weight or less, an Na content of 0.04% by weight or less, a BET specific surface area of from 40 m2/g to 70 m2/g (inclusive), and a value obtained by [(d90 -d10)/(average particle diameter)] of 0.90 or less, said value being an index indicating the expanse of the particle size distribution.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 19, 2018
    Inventors: Tatsuya Takahashi, Masashi Iwara
  • Patent number: 9994938
    Abstract: The present invention relates to an Fe—Ni-based alloy having excellent high-temperature characteristics and hydrogen embrittlement resistance, which has a composition containing, in terms of % by mass, C: 0.005% to 0.10%, Si: 0.01% to 0.10%, P: 0.015% or less, S: 0.003% or less, Ni: 23.0% to 27.0%, Cr: 12.0% to 16.0%, Mo: 0.01% or less, Nb: 0.01% or less, W: 2.5% to 6.0%, Al: 1.5% to 2.5%, and Ti: 1.5% to 2.5%, the balance being Fe and other unavoidable impurities.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: June 12, 2018
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Shinya Sato, Rinzo Kayano, Tatsuya Takahashi, Koichi Takasawa
  • Patent number: 9880454
    Abstract: A light source device is disclosed. An embodiment of the light source device includes: an excitation light source configured to emit irradiation light of a color component to be used as excitation light and projection light; a fluorescent member disposed in an excitation light path and configured to generate fluorescence of a color component different from the color component of the irradiation light when being irradiated with the irradiation light; a light path merger unit configured to merge a fluorescence light path through which the fluorescence generated with irradiation of the irradiation light is delivered, and a projection light path through which the projection light is delivered; and a light path switch disk configured to switch the irradiation light between the excitation light path and the projection light path.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 30, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tatsuya Takahashi, Kazuhiro Fujita, Toshiharu Murai, Takehiro Nishimori
  • Patent number: 9863759
    Abstract: An illumination apparatus includes: a light emitting unit that outputs light; a light condensing unit that condenses the light output from the light emitting unit; a diffusion unit that diffuses the light condensed by the light condensing unit; and a uniformizing optical system that receives the light diffused by the diffusion unit, uniformizes a brightness distribution thereof compared with that of the light being received, and outputs the resulting light.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 9, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tatsuya Takahashi, Kazuhiro Fujita, Toshiharu Murai, Takehiro Nishimori, Takahiro Kado, Jun Kishiwada
  • Patent number: 9857672
    Abstract: A light source unit includes a first reflector having a reflection face; a second reflector having a reflection face; a plurality of light sources; and a light condensing optical system to condense light emitted from the plurality of light sources. Light beams emitted from the plurality of light sources are reflected at a first reflection position on the reflection face of the first reflector, and then reflected at a second reflection position on the reflection face of the second reflector. The second reflection position is close to an optical axis of the light condensing optical system compared to the first reflection position.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: January 2, 2018
    Assignee: RICOH COMPANY, LTD
    Inventors: Tatsuya Takahashi, Takanobu Osaka, Naoki Nakamura, Kazuhiro Fujita, Takehiro Nishimori
  • Patent number: 9856553
    Abstract: A subject for the invention is to diminish the occurrence of streak-type segregation in producing a material comprising a Ni-based superalloy. The invention relates to a Ni-based superalloy having excellent unsusceptibility to segregation, characterized by comprising: 0.005 to 0.15 mass % of C; 8 to 22 mass % of Cr; 5 to 30 mass % of Co; equal or greater than 1 and less than 9 mass % of Mo; 5 to 21 mass % of W; 0.1 to 2.0 mass % of Al; 0.3 to 2.5 mass % of Ti; up to 0.015 mass % of B; and up to 0.01 mass % of Mg, with the remainder comprising Ni and unavoidable impurities.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: January 2, 2018
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Satoru Ohsaki, Tatsuya Takahashi, Koji Kajikawa, Eiji Maeda, Yoshikuni Kadoya, Ryuichi Yamamoto, Takashi Nakano
  • Patent number: 9795317
    Abstract: Provided is a body composition measurement device capable of accurately acquiring visceral fat quantity-related information as body composition-related information of a human body. A body composition measurement device has a voltage detection unit that detects a voltage that occurs at a human-body-mimic resistor in order to measure a resistance value of a compensating resistor unit and detects a voltage that occurs at voltage measurement electrode pair as a result of current that is generated by a current generation unit and that is supplied to the abdomen of the subject via the current supply electrode pair, and a calculation unit that generates body composition-related information for the subject on the basis of the voltage occurring at the voltage measurement electrode pair and the voltage generated at the human-body-mimic resistor, which have been detected by the voltage detection unit.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: October 24, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Ochi, Hiroaki Fukuda, Tatsuya Takahashi, Jakusei Kiyosaki
  • Publication number: 20170299953
    Abstract: A light source device comprising: a light source section which generates any one of blue light, red light, and green light; a phosphor which generates a fluorescence including the two colors other than the color of the light emitted from the light source section; a color-changing section which changes one of the two colors of the fluorescence emitted from the phosphor to another color regularly and irradiates it to the image-forming element; and a light path-switching section which switches a light path in which a fluorescence excited by the color light emitted from the light source section passes towards the color-changing section and a light path in which the color light emitted from the light source section passes towards the image-forming element regularly.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 19, 2017
    Inventors: Ikuo MAEDA, Kazuhiro FUJITA, Toshiharu MURAI, Tatsuya TAKAHASHI, Takehiro NISHIMORI
  • Patent number: 9784672
    Abstract: Provided is a foodstuff analysis device capable of readily calculating calories or component weights. The foodstuff analysis device has a light-emitting unit, a light-receiving section, and a control unit. The light-emitting unit irradiates light including at least some wavelengths among wavelengths in the range 700-1,100 nm, on to an analysis target. The light-receiving section receives light reflected from the analysis target. The control unit calculates the absorbance of light received by the light-receiving section, and calculates the calories of the analysis target on the basis of the calculated absorbance and on the basis of the correlation between absorbance and calories.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 10, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuhiro Ochi, Tatsuya Takahashi
  • Publication number: 20170275378
    Abstract: Provided is a monoclonal antibody or a fragment thereof that selectively inhibits the enzymatic activity of vascular endothelial lipase and pharmaceutical compositions containing the same as an active ingredient useful for the treatment of arteriosclerosis or metabolic syndrome.
    Type: Application
    Filed: June 2, 2017
    Publication date: September 28, 2017
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Shoichi NAITO, Junji ONODA, Tasuku TSUKAMOTO, Katsutoshi YAMADA, Shoji YAMANE, Yoshito NUMATA, Kazuhiko MAEKAWA, Tatsuya TAKAHASHI
  • Patent number: 9746755
    Abstract: A light source device includes a light source section that emits laser light, a reflection and diffusion member that diffuses and reflects the laser light emitted from the light source section, and a cooler that cools the reflection and diffusion member. The cooler includes at least one of an axial fan, an electronic cooling element, and a heat pipe.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: August 29, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takehiro Nishimori, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Takahiro Kado
  • Patent number: 9726614
    Abstract: An analysis apparatus is provided with: a light emitting part, a light dispersing part, a light detecting part, a storage unit, and a control unit. The light dispersing part disperses first reflected light reflected from a food product when the food product has been irradiated with light from the light emitting part. The light detecting part: generates first detection data by detecting the first reflected light dispersed; and, when a food product sample containing known ingredients is irradiated with light from the light emitting part, generates second detection data by detecting second reflected light reflected from the food product sample and dispersed by the light dispersing part. The storage unit stores a regression formula computed using the second detection data as a parameter. The control unit estimates the ingredients contained in the food product using the first detection data and the regression formula stored in the storage unit.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 8, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Takahashi, Tomoya Kusakabe
  • Patent number: 9726966
    Abstract: A light source device including: a light source section which generates any one of blue light, red light, and green light; a phosphor which generates a fluorescence including the two colors other than the color of the light emitted from the light source section; a color-changing section which changes one of the two colors of the fluorescence emitted from the phosphor to another color regularly and irradiates it to the image-forming element; and a light path-switching section which switches a light path in which a fluorescence excited by the color light emitted from the light source section passes towards the color-changing section and a light path in which the color light emitted from the light source section passes towards the image-forming element regularly.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 8, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ikuo Maeda, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Takehiro Nishimori
  • Publication number: 20170210006
    Abstract: An irradiation apparatus includes a light source unit to emit light, a light condenser, disposed on a light path of the light emitted from the light source unit, to condense the light emitted from the light source unit, a first diffuser, disposed on a light path of the light exiting from the light condenser, to diffuse the light condensed by the light condenser, an optical equalizer, disposed downstream of the first diffuser, to equalize a luminance distribution of the light entering the optical equalizer from the first diffuser and to output the light having the equalized luminance distribution, and a second diffuser, disposed downstream of the optical equalizer, to diffuse the light exiting from the optical equalizer.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 27, 2017
    Inventor: Tatsuya TAKAHASHI
  • Patent number: 9701757
    Abstract: Provided is a monoclonal antibody or a fragment thereof that selectively inhibits the enzymatic activity of vascular endothelial lipase and pharmaceutical compositions containing the same as an active ingredient useful for the treatment of arteriosclerosis or metabolic syndrome.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: July 11, 2017
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Shoichi Naito, Junji Onoda, Tasuku Tsukamoto, Katsutoshi Yamada, Shoji Yamane, Yoshito Numata, Kazuhiko Maekawa, Tatsuya Takahashi
  • Patent number: 9625692
    Abstract: Disclosed is a projection optical system including a first optical system configured to form a first image conjugate to an object and have an optical axis and a second optical system configured to project a second image conjugate to the first image onto a surface to be projected on, wherein the first image satisfies a condition of: Im×Tr?1.70 wherein Im denotes a length of the first image in a direction of an optical axis of the first optical system, normalized by a focal length of the first optical system, and Tr denotes a throw ratio for the projection optical system.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: April 18, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Takahashi, Kazuhiro Fujita, Issei Abe
  • Patent number: 9604432
    Abstract: The invention is to provide a coating structure material excellent in Mg corrosion resistance, which has resistance to corrosion caused by molten Mg and molten Mg alloys. The invention relates to a coating structure material including an Ni—Co-base alloy substrate and a Co-base alloy coating layer formed on the Ni—Co-base alloy substrate, wherein the Co-base alloy coating layer contains, in terms of % by mass, Ni: 20% or less, Co: 42% or more, Si: 2.8% or less, and Fe: 3.5% or less.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 28, 2017
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Kouichi Takasawa, Eiji Maeda, Shinji Tanaka, Tatsuya Takahashi