Patents by Inventor Sumio Yoda

Sumio Yoda 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).

  • Photosensitive resin composition and color filter comprising a polymer dyeable with an anionic dye, an azide compound and a compound with at least two acrylol groups
    Patent number: 5190845
    Abstract: A photosensitive resin composition comprising:(a) a polymer dyeable with an anionic dye(b) an azide photosensitive compound, and(c) a compound having at least two acryloyl and/or methacryloyl groups in the same molecule thereof, and a color filter obtained by using the resin composition.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: March 2, 1993
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Matsuo Hashimoto, Nobuyuki Futamura, Sumio Yoda, Yoshifumi Saiki
  • Resin compositions and process for forming transparent thin films
    Patent number: 5180794
    Abstract: A resin composition comprising(a) a glycidyl ether of phenol novolak and/or cresol novolak,(b) a phenol novolak and/or cresol novolak,(c) an organic solvent, and(d) a silane coupling agent having an aromatic ring and an amino group having active hydrogen in the same molecule;a process for forming a transparent thin film by using a glycidyl ether of phenol novolak and/or cresol novolak and a phenol novolak and/or cresol novolak, which comprises dissolving said materials in an organic solvent, forming a coat and heat curing it to obtain a transparent thin film, wherein the improvement comprises the use of a silane coupling agent having an aromatic ring and an amino group having active hydrogen in the same molecule as additive; andtransparent thin films formed from the above process.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: January 19, 1993
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Sumio Yoda, Nobuyuki Futamura, Matsuo Hashimoto, Yoshifumi Saiki
  • Platinum complexes
    Patent number: 5128493
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 7, 1992
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Novel platinum complexes
    Patent number: 5068376
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group of a group represented by ##STR3## wherein m is 1 or 2.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: November 26, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Novel platinum complexes
    Patent number: 4987246
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: January 22, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Novel platinum complexes
    Patent number: 4921984
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: May 1, 1990
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Platinum complexes
    Patent number: 4864043
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: September 5, 1989
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Platinum complexes
    Patent number: 4861905
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: August 29, 1989
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi
  • Platinum Complexes
    Patent number: 4737589
    Abstract: A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: April 12, 1988
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroyoshi Nowatari, Hiroshi Hayami, Yasuo Kuroda, Sumio Yoda, Katsutoshi Takahashi