Patents by Inventor Shigeki Katogi

Shigeki Katogi 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: 10175577
    Abstract: The invention provides a photosensitive resin composition comprising (A) an alkali-soluble resin having a phenolic hydroxyl group, (B) a compound that generates an acid by light, and (C) an acrylic resin having a group that crosslinks with the component (A), as well as a method for manufacturing a patterned cured film, and an electronic component prepared therewith.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: January 8, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shingo Tahara, Shigeki Katogi, Hiroshi Matsutani, Kouichi Abe, Akitoshi Tanimoto, Yu Aoki
  • Patent number: 9837572
    Abstract: Provided is a method of manufacturing a solar cell module including: a step (A) of applying a conductive adhesive composition comprising conductive particles having metal, or the like; a step (B) of disposing wiring members so as to face with electrodes of the solar battery cells with the applied conductive adhesive composition interposed therebetween; a step (C) of heating the solar battery cells with the wiring members obtained in the step (B); and a step (D) of laminating sealing resins onto both surfaces of the solar battery cells with the wiring members obtained in the step (C), laminating protection glass onto a light-receiving surface of the solar battery cell and a protection film onto a rear surface of the solar battery cell, and performing heating, in which a melting point of the metal in the conductive particles is or lower than the heating temperature in the step (C).
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: December 5, 2017
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Aya Momozaki, Shigeki Katogi, Hiroki Hayashi, Michiko Natori, Shinichirou Sukata
  • Patent number: 9395626
    Abstract: There is provided a photosensitive resin composition containing (A) an alkali-soluble resin, (B) a compound which generates an acid when exposed to light, (C) a thermal crosslinking agent, and (D) a nitrogen-containing aromatic compound represented by the following formula (1): wherein R1 represents a hydrogen atom or a hydrocarbon group; R2 represents a hydrogen atom, an amino group or a phenyl group; and A and B each independently represent a nitrogen atom, or a carbon atom and a hydrogen atom bonded thereto.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 19, 2016
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Akitoshi Tanimoto, Shigeru Nobe, Kei Kasuya, Hiroshi Matsutani, Shigeki Katogi, Yu Aoki, Shingo Tahara
  • Patent number: 9309446
    Abstract: The present invention relates to a photosensitive adhesive composition that has thermal press bondability to an adherent after being patterned by exposure and development and enables alkali development, wherein a storage elastic modulus at 110° C. after exposure and further heat curing is not less than 10 MPa.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: April 12, 2016
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kazuyuki Mitsukura, Takashi Kawamori, Takashi Masuko, Shigeki Katogi
  • Patent number: 9274422
    Abstract: A photosensitive resin composition including: (a) a polybenzoxazole precursor; (b) a photosensitizer; (c) a solvent; (d) a cross-linking agent; and (e) a heterocyclic compound including a hydroxyl group, an alkoxy group or a carboxyl group within a molecule.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: March 1, 2016
    Assignee: HITACHI CHEMICAL DUPONT MICROSYSTEMS, LTD.
    Inventors: Tomonori Minegishi, Shigeki Katogi
  • Patent number: 8962986
    Abstract: A conductive adhesive comprising conductive particles including metal, a thermosetting resin, a flux activator, and preferably a rheology control agent is provided. A melting point of the conductive particles is preferably 220° C. or lower. The conductive adhesive is used for electrically connecting and adhering wiring members 4a, 4b to electrodes 3a, 3b connected to a solar battery cell 6.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 24, 2015
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Hiroki Hayashi, Shigeki Katogi, Shinichirou Sukata, Michiko Natori, Aya Momozaki
  • Publication number: 20150024173
    Abstract: The invention provides a photosensitive resin composition comprising (A) an alkali-soluble resin having a phenolic hydroxyl group, (B) a compound that generates an acid by light, and (C) an acrylic resin having a group that crosslinks with the component (A), as well as a method for manufacturing a patterned cured film, and an electronic component prepared therewith.
    Type: Application
    Filed: February 4, 2013
    Publication date: January 22, 2015
    Inventors: Shingo Tahara, Shigeki Katogi, Hiroshi Matsutani, Kouichi Abe, Akitoshi Tanimoto, Yu Aoki
  • Publication number: 20140322635
    Abstract: There is provided a photosensitive resin composition containing (A) an alkali-soluble resin, (B) a compound which generates an acid when exposed to light, (C) a thermal crosslinking agent, and (D) a nitrogen-containing aromatic compound represented by the following formula (1): wherein R1 represents a hydrogen atom or a hydrocarbon group; R2 represents a hydrogen atom, an amino group or a phenyl group; and A and B each independently represent a nitrogen atom, or a carbon atom and a hydrogen atom bonded thereto.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 30, 2014
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Akitoshi Tanimoto, Shigeru Nobe, Kei Kasuya, Hiroshi Matsutani, Shigeki Katogi, Yu Aoki, Shingo Tahara
  • Publication number: 20140144481
    Abstract: Provided is a solar cell module in which a plurality of solar cells and a wiring member for electrically connecting the solar cells are connected via connecting portions and, wherein a plurality of finger electrodes are formed on a light receiving surface of a photoelectric conversion body of the solar cell, the wiring member is arranged so as to intersect with the plurality of finger electrodes, and the connecting portion on a light receiving surface side comprises a metal portion which is formed by allowing conductive particles containing a metal having a melting temperature of 200° C. or less to melt and aggregate in a resin and connects the individual finger electrodes and the wiring member; and a resin portion which is composed of the resin and surrounds the metal portion to bond the photoelectric conversion body and the wiring member.
    Type: Application
    Filed: September 30, 2011
    Publication date: May 29, 2014
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Hiroki Hayashi, Shigeki Katogi, Shinichirou Sukata, Aya Momozaki
  • Publication number: 20140120462
    Abstract: A photosensitive resin composition including: (a) a polybenzoxazole precursor; (b) a photosensitizer; (c) a solvent; (d) a cross-linking agent; and (e) a heterocyclic compound including a hydroxyl group, an alkoxy group or a carboxyl group within a molecule.
    Type: Application
    Filed: June 13, 2012
    Publication date: May 1, 2014
    Applicant: Hitachi Chemical DuPont Microsystems, Ltd.
    Inventors: Tomonori Minegishi, Shigeki Katogi
  • Patent number: 8696942
    Abstract: The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane(meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 15, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Hiroyuki Izawa, Houko Sutou, Masami Yusa, Tohru Fujinawa
  • Patent number: 8673539
    Abstract: A photosensitive adhesive composition comprising: (A) a polyimide having a carboxyl group as a side chain, whereof the acid value is 80 to 180 mg/KOH; (B) a photo-polymerizable compound; and (C) a photopolymerization initiator.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: March 18, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Kawamori, Takashi Masuko, Shigeki Katogi, Masaaki Yasuda
  • Publication number: 20130340813
    Abstract: Provided is a method of manufacturing a solar cell module including: a step (A) of applying a conductive adhesive composition comprising conductive particles having metal, or the like; a step (B) of disposing wiring members so as to face with electrodes of the solar battery cells with the applied conductive adhesive composition interposed therebetween; a step (C) of heating the solar battery cells with the wiring members obtained in the step (B); and a step (D) of laminating sealing resins onto both surfaces of the solar battery cells with the wiring members obtained in the step (C), laminating protection glass onto a light-receiving surface of the solar battery cell and a protection film onto a rear surface of the solar battery cell, and performing heating, in which a melting point of the metal in the conductive particles is or lower than the heating temperature in the step (C).
    Type: Application
    Filed: January 11, 2012
    Publication date: December 26, 2013
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Aya Momozaki, Shigeki Katogi, Hiroki Hayashi, Michiko Natori, Shinichirou Sukata
  • Patent number: 8518303
    Abstract: The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane(meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: August 27, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Hiroyuki Izawa, Houko Sutou, Masami Yusa, Tohru Fujinawa
  • Patent number: 8507323
    Abstract: A photosensitive adhesive capable of alkali development, the photosensitive adhesive exhibiting adhesion property for an adherend after it has been patterned by light exposure and development, the photosensitive adhesive being used in a method for producing a semiconductor device 100 comprising a step of patterning the photosensitive adhesive 1 provided on a circuit surface of a semiconductor chip 20 by light exposure and development; and a step of directly bonding another semiconductor chip 21 to the patterned photosensitive adhesive 1.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: August 13, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Masuko, Takashi Kawamori, Kazuyuki Mitsukura, Shigeki Katogi
  • Patent number: 8445177
    Abstract: A photosensitive adhesive composition comprising: (A) a polyimide having a carboxyl group as a side chain, whereof the acid value is 80 to 180 mg/KOH; (B) a photo-polymerizable compound; and (C) a photopolymerization initiator.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 21, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Kawamori, Takashi Masuko, Shigeki Katogi, Masaaki Yasuda
  • Publication number: 20130075142
    Abstract: An adhesive composition for connection between a first circuit member having a first connecting terminal on the main surface and a second circuit member having a second connecting terminal on the main surface, wherein the first circuit member and/or second circuit member are made of a base material containing a thermoplastic resin with a glass transition temperature of no higher than 200° C., the first connecting terminal and/or second connecting terminal are made of ITO and/or IZO, and the adhesive composition includes a phosphate group-containing compound, the free phosphate concentration of the cured adhesive composition being no greater than 100 ppm by mass.
    Type: Application
    Filed: March 24, 2011
    Publication date: March 28, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventors: Hiroyuki Izawa, Shigeki Katogi
  • Publication number: 20130062787
    Abstract: A photosensitive adhesive composition comprising: (A) a polyimide having a carboxyl group as a side chain, whereof the acid value is 80 to 180 mg/KOH; (B) a photo-polymerizable compound; and (C) a photopolymerization initiator.
    Type: Application
    Filed: November 9, 2012
    Publication date: March 14, 2013
    Inventors: Takashi Kawamori, Takashi Masuko, Shigeki Katogi, Masaaki Yasuda
  • Patent number: 8373283
    Abstract: The adhesive composition of the invention comprises (A) a thermoplastic resin with a Tg of no higher than 100° C. and (B) a thermosetting component, wherein the (B) thermosetting component includes (B1) a compound with an allyl group and (B2) a compound with a maleimide group.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 12, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Masuko, Shigeki Katogi
  • Patent number: 8349700
    Abstract: A method for manufacturing a semiconductor device 1, comprising a first step of providing a photosensitive adhesive (insulating resin layer 7) on a board 3 which has a connecting terminal, a second step of patterning the photosensitive adhesive by light exposure and development so that openings 13 are formed where the connecting terminal is exposed, a third step of filling the openings 13 with a conductive material to form a conductive layer 9, and a fourth step of directly bonding a semiconductor chip 5 having a connecting electrode section to the photosensitive adhesive while electrically connecting the connecting terminal of the board 3 and the connecting electrode section of the semiconductor chip 5 via the conductive layer 9.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: January 8, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Masuko, Takashi Kawamori, Kazuyuki Mitsukura, Shigeki Katogi