Patents by Inventor Akinori Sei

Akinori Sei 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).

  • Adhesive tape for tape automated bonding
    Patent number: 5945188
    Abstract: An adhesive tape for TAB having an organic insulating film, an adhesive layer formed on the organic insulating film and a protection layer formed on the adhesive layer, the adhesive layer being any one of a layer containing a polyamide resin having an amine value of at least 3 and an epoxy resin, a layer containing a polyamide resin and a powdery inorganic filler, a layer containing an epoxy resin having a siloxane structure in its main chain, and a layer containing at least one maleimide compound.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: August 31, 1999
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Akinori Sei, Yoshikazu Tsukamoto, Takashi Shiozawa, Tadahiro Ohishi, Hitoshi Narushima
  • Adhesive tape for tape automated bonding
    Patent number: 5843550
    Abstract: An adhesive tape for TAB having an organic insulating film, an adhesive layer formed on the organic insulating film and a protection layer formed on the adhesive layer, the adhesive layer being any one of a layer containing a polyamide resin having an amine value of at least 3 and an epoxy resin, a layer containing a polyamide resin and a powdery inorganic filler, a layer containing an epoxy resin having a siloxane structure in its main chain, and a layer containing at least one maleimide compound.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: December 1, 1998
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Akinori Sei, Yoshikazu Tsukamoto, Takashi Shiozawa, Tadahiro Ohishi
  • Adhesive for semiconductor devices and adhesive tape using the adhesive
    Patent number: 5786055
    Abstract: An adhesive for semiconductor device, comprising (a) a polyamide resin having an amine value of 20 to 60 and a weight average molecular weight of 1,000 to 5,000 and (b) a phenolic compound having a weight average molecular weight of 2,000 or less and having a skeleton containing at least 2 methylol groups.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: July 28, 1998
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Akinori Sei, Yoshikazu Tsukamoto, Takashi Shiozawa, Shouji Aoki, Tadahiro Oishi, Hitoshi Narushima
  • Adhesive paper for tape automated bonding
    Patent number: 5523137
    Abstract: An adhesive tape for TAB having an organic insulating film, an adhesive layer formed on the organic insulating film and a protection layer formed on the adhesive layer, the adhesive layer being any one of a layer containing a polyamide resin having an amine value of at least 3 and an epoxy resin, a layer containing a polyamide resin and a powdery inorganic filler, a layer containing an epoxy resin having a siloxane structure in its main chain, and a layer containing at least one maleimide compound.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: June 4, 1996
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Akinori Sei, Yoshikazu Tsukamoto, Takashi Shiozawa, Tadahiro Ohishi, Hitoshi Narushima
  • Lighting lamp
    Patent number: 4991074
    Abstract: A lighting lamp having a display sheet laminated on the surface of a bulb thereof, said display sheet comprising a support having laminated thereon a light-susceptible layer including an active layer containing at least one of a dye and a pigment capable of coloring, fading, or discoloring by the action of an active light and an adhesive layer formed on the surface of the light-susceptible layer such that the portion corresponding to at least the display portion thereof is exposed, and being laminated on the surface of the bulb by the adhesive layer.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: February 5, 1991
    Assignees: Tomoegawa Paper Co., Ltd., Hitachi Ltd.
    Inventors: Yasuo Kobayashi, Yasuo Hirasawa, Churyo Kodama, Katsumi Miyazaki, Takao Higashi, Masami Yanagisawa, Akinori Sei
  • Lighting lamp
    Patent number: 4954937
    Abstract: A lighting lamp is disclosed, comprising a lamp having laminated on the surface of a bulb thereof a display sheet, said display sheet comprising a support having thereon an active layer containing a pigment which is faded by the action of an active light and an active light-adjusting layer.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: September 4, 1990
    Assignees: Tomoegawa Paper Co., Ltd., Hitachi Ltd.
    Inventors: Yasuo Kobayashi, Naoki Hagiwara, Taisuke Hirota, Churyo Kodama, Yasuo Hirasawa, Katsumi Miyazaki, Fumio Kawamura, Takao Higashi, Masami Yanagisawa, Akinori Sei