Patents by Inventor Kouji Nishikawa

Kouji Nishikawa 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: 20220340945
    Abstract: The purpose of the present invention is to provide microorganisms which efficiently produce nicotinamide riboside, and microorganisms which can efficiently produce both nicotinamide mononucleotide and nicotinamide riboside. Nicotinamide mononucleotide and nicotinamide riboside can be produced by culturing lactic acid bacteria belonging to the genus Fructobacillus.
    Type: Application
    Filed: October 6, 2020
    Publication date: October 27, 2022
    Inventors: Nobuyuki Yoshida, Kouji Nishikawa, Hideaki Idogaki
  • Patent number: 10162280
    Abstract: A toner having excellent development performance, low-temperature fixation, and high-temperature storage stability is provided. An external additive contained in this toner is an organic-inorganic composite fine particle containing an inorganic fine particle embedded in a resin fine particle. The resin fine particle is made from a resin having a melting point of 60° C. or more and 150° C. or less.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: December 25, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouji Nishikawa, Katsuhisa Yamazaki, Daisuke Yoshiba, Shotaro Nomura, Hiroki Akiyama, Masami Fujimoto
  • Patent number: 9500970
    Abstract: Provided is a toner that has excellent low-temperature fixability and is capable of obtaining an image having a stable image density, in which the occurrence of image defects is suppressed. The toner includes toner base particles, each of which contains a binder resin and a magnetic material, and organic-inorganic composite fine particles on each of the toner base particles. Each of the organic-inorganic composite fine particles comprises a vinyl resin particle, and inorganic fine particles which are embedded in the vinyl resin particle, and at least a part of which are exposed. The volumetric specific heat of the organic-inorganic composite fine particles and the volumetric specific heat of the toner base particles satisfy a predetermined provision.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 22, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shotaro Nomura, Masami Fujimoto, Katsuhisa Yamazaki, Kouji Nishikawa, Daisuke Yoshiba, Hiroki Akiyama
  • Publication number: 20160179024
    Abstract: A toner having excellent development performance, low-temperature fixation, and high-temperature storage stability is provided. An external additive contained in this toner is an organic-inorganic composite fine particle containing an inorganic fine particle embedded in a resin fine particle. The resin fine particle is made from a resin having a melting point of 60° C. or more and 150° C. or less.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 23, 2016
    Inventors: Kouji Nishikawa, Katsuhisa Yamazaki, Daisuke Yoshiba, Shotaro Nomura, Hiroki Akiyama, Masami Fujimoto
  • Patent number: 9129437
    Abstract: A line plotting method for plotting lines whose coordinates are given on a display screen on which pixels are arranged according to a prescribed rule, the method includes correcting coordinates at the end point of a line on the basis of which the end point is a starting point or an ending point or whether the end point is inside a prescribed frame determining whether a direction from a starting point of a line after correction toward its ending point horizontally or vertically is the same as a direction from a starting point before correction of a line toward its ending point determining whether integer values of the coordinates of starting and ending points after correction are the same when directions from starting points after and before correction of a line toward their ending points are not matched.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: September 8, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kouji Nishikawa, Makoto Adachi, Masayuki Nakamura, Motonobu Mamiya, Kae Yamashita
  • Publication number: 20150037720
    Abstract: Provided is magnetic toner capable of favorably maintain fluidity of the magnetic toner in a developing unit even after a large number of image formation. The magnetic toner to which an external additive that has 1) a number average particle diameter of 70 or more and 200 or less, 2) a shape factor SF-1 of 100 or more and 250 or less, and 3) a shape factor SF-2 of 105 or more and 250 or less, is added, and a covering rate by silica on the surfaces of toner particles is 40.0% or more and 70.0% or less, and the magnetic toner has specific fluidity.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: Shohei Tsuda, Yojiro Hotta, Kouji Nishikawa, Shotaro Nomura, Katsuhisa Yamazaki, Masami Fujimoto, Takayuki Itakura
  • Publication number: 20150037726
    Abstract: The toner comprises: toner particles each containing a binder resin and a releasing agent; and an organic-inorganic composite fine particle, wherein: the organic-inorganic composite fine particle comprises: a vinyl resin particle containing a vinyl resin, the vinyl resin containing THF-insoluble matter in an amount of 95% by mass or more; and inorganic fine particles which are exposed at surfaces of the respective organic-inorganic composite fine particles, the organic-inorganic composite fine particle 1) has a plurality of convexes derived from the inorganic fine particles on the surfaces thereof, 2) has a number average particle size of 70-500 nm, and 3) has a shape factor SF-2 as measured at a magnification of 200,000 times of 103-120, and an absolute value of difference between an SP value of the releasing agent and an SP value of the vinyl resin is 0.50 (cal/cm3)1/2 or less.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 5, 2015
    Inventors: Shotaro Nomura, Masami Fujimoto, Katsuhisa Yamazaki, Kouji Nishikawa, Daisuke Yoshiba, Hiroki Akiyama
  • Publication number: 20150037721
    Abstract: Provided is a toner that has excellent low-temperature fixability and is capable of obtaining an image having a stable image density, in which the occurrence of image defects is suppressed. The toner includes toner base particles, each of which contains a binder resin and a magnetic material, and organic-inorganic composite fine particles on each of the toner base particles. Each of the organic-inorganic composite fine particles comprises a vinyl resin particle, and inorganic fine particles which are embedded in the vinyl resin particle, and at least a part of which are exposed. The volumetric specific heat of the organic-inorganic composite fine particles and the volumetric specific heat of the toner base particles satisfy a predetermined provision.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Shotaro Nomura, Masami Fujimoto, Katsuhisa Yamazaki, Kouji Nishikawa, Daisuke Yoshiba, Hiroki Akiyama
  • Publication number: 20140004460
    Abstract: A toner is provided in which low-temperature fixing properties and high-temperature offset resistance can be compatible, and the environmental stability of image density can also be obtained. A toner obtained by condensation polymerization of an alcohol component containing not less than 70 mol % of an aliphatic polyalcohol with a carboxylic acid component, and including a polyester resin having a concentration of an ester group of not less than 25% by mass and not more than 55% by mass, and a compound represented by the following formula (1) as a charge-controlling agent: (wherein A1, A2, and A3 each independently represent H, a nitro group, or a halogen atom; B1 represents H or an alkyl group; M represents an Fe atom, a Cr atom, or an Al atom; X+ represents a H ion, an alkali metal ion, a NH4 ion, an alkylammonium ion, or mixed ions thereof.
    Type: Application
    Filed: March 21, 2012
    Publication date: January 2, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Yoshiba, Yoshihiro Ogawa, Kouji Nishikawa, Shigeto Tamura, Naohiko Tsuchida, Masami Fujimoto
  • Patent number: 8475998
    Abstract: A compound synthesis method includes bonding a first compound to a substrate to form a first film. A second film is formed on the first film using an acid-transfer composition including (A) a polymer that includes a structural unit shown by a following formula (1) and a structural unit shown by a following formula (2), (B) a photoacid generator shown by a following formula (3), and (C) a sensitizer shown by a following formula (4). The second film is exposed to remove the protecting group from the first compound under an exposed area of the second film. An acid generated in the exposed area of the second film is transferred to the first film. The second film after being exposed is removed. A second compound is bonded to the first compound from which the protecting group has been removed.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 2, 2013
    Assignees: Samsung Electronics Co., Ltd., JSR Corporation
    Inventors: Hyojin Yun, Changeun Yoo, Myung-Sun Kim, Soo-Kyung Kim, Kouji Nishikawa, Hirofumi Goto, Hidetoshi Miyamoto
  • Patent number: 8462167
    Abstract: A memory access control circuit includes a first internal register, an address transmitting unit that sets a state of the first internal register to a first state to transmit a first address and sets a state of the first internal register to a second state to transmit a second address, a second internal register, a data receiving unit that sets a state of the second internal register to a third state to receive first data corresponding to the first address, performs data processing on the first data without delay, sets a state of the second internal register to a fourth state to receive second data corresponding to the second address, and performs data processing on the second data after delaying the second data by a given delay time, a first backup unit and a second backup unit.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: June 11, 2013
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Akihiro Kawahara, Makoto Adachi, Kouji Nishikawa, Masayuki Nakamura, Motonobu Mamiya, Kae Yamashita
  • Patent number: 8252511
    Abstract: A first film-modifying method includes forming a second film on a first film that includes an acid-dissociable group. The second film is an acid transfer resin film that includes a photoacid generator. The second film is exposed via a mask so that the second film generates an acid. The acid generated by the second film is transferred to the first film. The second film is removed.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: August 28, 2012
    Assignee: JSR Corporation
    Inventor: Kouji Nishikawa
  • Publication number: 20120196772
    Abstract: A compound synthesis method includes bonding a first compound to a substrate to form a first film. A second film is formed on the first film using an acid-transfer composition including (A) a polymer that includes a structural unit shown by a following formula (1) and a structural unit shown by a following formula (2), (B) a photoacid generator shown by a following formula (3), and (C) a sensitizer shown by a following formula (4). The second film is exposed to remove the protecting group from the first compound under an exposed are of the second film. An acid generated in the exposed area of the second film is transferred to the first film. The second film after being exposed is removed. A second compound is bonded to the first compound from which the protecting group has been removed.
    Type: Application
    Filed: December 19, 2011
    Publication date: August 2, 2012
    Applicants: JSR Corporation, Samsung Electronics Co.,Ltd.
    Inventors: Hyojin YUN, Changeun YOO, Myung-Sun KIM, Soo-Kyung KIM, Kouji NISHIKAWA, Hirofumi GOTO, Hidetoshi MIYAMOTO
  • Patent number: 8178279
    Abstract: A negative-tone radiation-sensitive resin composition includes an alkali-soluble resin, a radically polymerizable compound, a radiation-sensitive radical initiator, and an organic solvent. The alkali-soluble resin includes a phenolic hydroxyl group. The radically polymerizable compound includes an ethylenically unsaturated double bond. The organic solvent includes an ethylene glycol organic solvent having a saturation vapor pressure of 3 mmHg or less at 20° C. and 1 atmosphere.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: May 15, 2012
    Assignee: JSR Corporation
    Inventors: Kouji Nishikawa, Akari Sako
  • Patent number: 8124306
    Abstract: The object of the present invention is to provide a magnetic toner enabling an image with high image density and excellent image reproducibility to be obtained, which is excellent in fluidity, charging stability, and charging uniformity, even for long-term use, and also enabling an image whose fogging, ghost, and scattering are suppressed to be obtained. The magnetic toner has at least a binder resin and a magnetic material, where, the magnetic material is an magnetic iron oxide whose dielectric breakdown voltage of the magnetic material is 160 to 1600 V/cm, and the dielectric loss tangent (tan ?) of the magnetic toner at 100 kHz and 40° C. is 2.0×10?3 to 1.0×10?2.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 28, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junko Hirata, Yoshihiro Ogawa, Yusuke Hasegawa, Kouji Nishikawa, Miho Okazaki, Takashige Kasuya
  • Patent number: 8084174
    Abstract: An object of the present invention is to provide a toner excellent in ability to prevent electrostatic offset and fixation tailing. Provided is a toner including toner particles each containing at least a binder resin, a wax, and a magnetic iron oxide, and inorganic fine particles, in which the magnetic iron oxide contains at least a Ti component, an Al component, an Si component, and an Fe component; and the each component has some particular characteristics.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: December 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Hasegawa, Yoshihiro Ogawa, Kouji Nishikawa, Kentarou Kamae, Takashige Kasuya
  • Publication number: 20110086938
    Abstract: A negative-tone radiation-sensitive resin composition includes an alkali-soluble resin, a radically polymerizable compound, a radiation-sensitive radical initiator, and an organic solvent. The alkali-soluble resin includes a phenolic hydroxyl group. The radically polymerizable compound includes an ethylenically unsaturated double bond. The organic solvent includes an ethylene glycol organic solvent having a saturation vapor pressure of 3 mmHg or less at 20° C. and 1 atmosphere.
    Type: Application
    Filed: December 21, 2010
    Publication date: April 14, 2011
    Applicant: JSR Corporation
    Inventors: Kouji Nishikawa, Akari Sako
  • Publication number: 20110076619
    Abstract: A first film-modifying method includes forming a second film on a first film that includes an acid-dissociable group. The second film is an acid transfer resin film that includes a photoacid generator. The second film is exposed via a mask so that the second film generates an acid. The acid generated by the second film is transferred to the first film.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: JSR Corporation
    Inventor: Kouji NISHIKAWA
  • Patent number: 7811734
    Abstract: Hydrophobic inorganic fine particles are provided which: does not cause melt adhesion of toner to a photosensitive member and contamination of a contact charging member; imparts excellent flowability, charging performance and durability to toner even after the toner is stored in a high-temperature, high-humidity environment over a long time period; and does not cause dripping of toner and contamination with the toner. The hydrophobic inorganic fine particles are obtained by subjecting inorganic fine particles to surface treatment with silicone oil and then with a silane compound and/or a silazane compound, or by subjecting inorganic fine particles to surface treatment with a silane compound and/or a silazane compound in the presence of silicone oil, and further subjecting the inorganic fine particles thus surface-treated to surface treatment with silicone oil.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 12, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiro Ogawa, Yusuke Hasegawa, Kouji Nishikawa, Miho Okazaki, Yoshitaka Suzumura, Takashige Kasuya
  • Publication number: 20100190109
    Abstract: The acid transfer composition of the invention comprises a radiation-sensitive acid generator, a polymer having a nitrogen-containing group and a ketone-based solvent. The composition may comprise further a sensitizer. The pattern forming method of the invention comprises a second resin film formation process in which the acid transfer composition is used to form a second resin film (acid transfer film) on a first resin film containing an acid-dissociable group-containing resin, but not containing a radiation-sensitive acid generator, an exposure process for exposing the second resin film to a light through a mask to generate an acid in the second resin film, an acid transfer process for transferring the acid generated in the second resin film to the first resin film, and a second resin film removing process.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 29, 2010
    Applicant: JSR Corporation
    Inventor: Kouji NISHIKAWA