Patents by Inventor Kunihiro Sakai

Kunihiro Sakai 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: 4939556
    Abstract: A semiconductor device is provided and which comprises a semiconductor having insulating layers and conductive layers laminated alternately. The semiconductor comprises an organic film, and electrodes are provided on the semiconductor.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: July 3, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ken Eguchi, Haruki Kawada, Kunihiro Sakai, Yoshinori Tomida, Hiroshi Matsuda, Toshiaki Kimura, Kiyoshi Takimoto, Toshihiko Miyazaki, Yuko Morikawa
  • Patent number: 4929524
    Abstract: There is provided an organic conductive medium, comprising an organic conductive layer formed on the surface of a substrate having fine uneven shape.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: May 29, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Toshihiko Miyazaki, Ken Eguchi, Haruki Kawada, Yoshinori Tomida, Toshiaki Kimura, Hiroshi Matsuda, Kiyoshi Takimoto, Kenji Saito
  • Patent number: 4917939
    Abstract: A recording method is provided which comprises irradiating a recording medium having a recording layer containing a diacetylene derivative compound with a laser beam having a wavelength of 420 to 800 nm according to an input information to allow irradiated portions of the recording medium to cause a color change and thereby to conduct recording. A recording medium for the recording method is also provided.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: April 17, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Matsuda, Kenji Saito, Kunihiro Sakai, Ken Eguchi, Yukuo Nishimura, Takashi Nakagiri
  • Patent number: 4910107
    Abstract: An optical recording-reproducing method comprising the step of irradiating a radiation for polymerization on an optical recording medium having a recording layer containing at least one selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes and polymethine compounds (hereinafter called the group B) and a diacetylene derivative compound; the step of irradiating a radiation corresponding to a recording information to thereby change the color at the irradiated portion of the recording layer; and the step of reading the recorded information by irradiating a reading light with a shorter wavelength than said radiation on said recording layer. Also, an optical recording-reproducing device utilizes the above-mentioned method.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: March 20, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruki Kawada, Hiroshi Matsuda, Takashi Nakagiri, Yoshinori Tomida, Kenji Saito, Toshiaki Kimura, Toshihiko Miyazaki, Ken Eguchi, Yukuo Nishimura, Kunihiro Sakai
  • Patent number: 4863832
    Abstract: An optical recording method is provided which comprises a step of irradiating light corresponding to recording information on the optical recording medium having a recording layer containing at least one selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes or polymethine compounds and a diacetylene derivative compound to thereby form a pit on said recording layer.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: September 5, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Saitoh, Toshihiko Miyazaki, Ken Eguchi, Yukuo Nishimura, Kunihiro Sakai, Haruki Kawada, Hiroshi Matsuda, Takashi Nakagiri, Yoshinori Tomida, Toshiaki Kimura
  • Patent number: 4840821
    Abstract: A method and apparatus for forming an LB film on a substrate in which the film is deposited by raising and lowering the surface of the liquid on which the group of molecules is spread relative to the substrate.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: June 20, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Miyazaki, Kunihiro Sakai, Yoshinori Tomida, Hiroyuki Sugata, Hiroshi Matsuda, Yukuo Nishimura
  • Patent number: 4835083
    Abstract: An electroconductive film is provided which has a first region constituted of a lamination layer comprising an electroconductive layer and an insulating layer, and a second layer having reduced or eliminated electroconductivity. Another type of electroconductive film is also provided having a first region constituted of a limination layer containing a compound having a polymerizable double bond and comprising an electroconductive layer and an insulating layer, and a second layer which is modified and having changed dissolution characteristics. The layer may be formed of a monomolecular film or monomolecular built-up film. A patterning method by use of the above electroconductive film is also provided.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: May 30, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Kenji Saitoh, Toshihiko Miyazaki, Ken Eguchi, Haruki Kawada, Toshiaki Kimura, Kiyoshi Takimoto, Hiroshi Matsuda, Yukuo Nishimura, Yoshinori Tomida
  • Patent number: 4798740
    Abstract: A polymerizable film is provided which comprises a transition metal and a polymerizable compound, and having a solubility in a solvent which changes through a maximum and a minimum repeatedly with an increase in energy imparted for polymerization. The polymerized film may comprise a polymerizable compound represented by the formula:R--C.tbd.C--C.tbd.C--(R.sub.1).sub.n --Xwherein R and R.sub.1 are hydrophobic sites, X is a hydrophilic site, and n is 0 or 1. This polymerizable film is useful as recording materials and resist materials.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: January 17, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Tomida, Kunihiro Sakai, Hiroshi Matsuda, Haruki Kawada, Ken Eguchi, Toshiaki Kimura, Kiyoshi Takimoto, Kenji Saitoh, Toshihiko Miyazaki
  • Patent number: 4796981
    Abstract: Optical modulation is effected by heating a monomolecular film or a built-up film of monomolecular layers.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: January 10, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukuo Nishimura, Masahiro Haruta, Yutaka Hirai, Kunihiro Sakai, Hiroshi Matsuda
  • Patent number: 4782006
    Abstract: An optical recording method comprises the steps of:(A) irradiating a radiation corresponding to a recording information on an optical recording medium having a recording layer containing a diacetylene derivative and at least one selected from the group (hereinafter called the group B) consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes and polymethine compounds, thereby forming a latent image; and(B) irradiating a radiation on the recording medium having said latent image formed thereon to thereby visualizing said latent image.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: November 1, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukuo Nishimura, Ken Eguchi, Kunihiro Sakai, Haruki Kawada, Hiroshi Matsuda, Takashi Nakagiri, Toshihiko Miyazaki, Yoshinori Tomida, Toshiaki Kimura, Kenji Saito
  • Patent number: 4780790
    Abstract: An electronic device is provided which has a function of an organic film condensor. The device comprises a plural number of electroconductive layers each comprising a monomolecular film of an organic molecule having both of an electroconductive site and a hydrophobic site in combination or a built-up film thereof, and a dielectric layer of a monomolecular film of an organic molecule having both of a hydrophobic site in combination or a built-up film thereof between the electroconductive layers laminated on a substrate.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: October 25, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyoshi Takimoto, Haruki Kawada, Kunihiro Sakai, Yoshinori Tomida, Hiroshi Matsuda, Kenji Saito, Ken Eguchi, Toshihiko Miyazaki