Patents by Inventor Nobuyoshi Takehara

Nobuyoshi Takehara 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).

  • Power line linking apparatus for linking a power generator to a commercial power line
    Patent number: 5548504
    Abstract: A line linking inverter achieves load balance and protection for loss of one phase in linking with a single-phase three-wire distribution. Input terminals for connection with a solar cell array or the like (1) are connected in parallel to a pair of power conversion units (21, 22), and output terminals of the pair of power conversion units (21, 22) are connected in series. The pair of power conversion uniys (21, 22) are simultaneously controlled by a controller (3).
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: August 20, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuyoshi Takehara
  • Semiconductor apparatus covered with a sealing resin composition
    Patent number: 5397401
    Abstract: A sealing material exhibiting excellent sealing performance while keeping a satisfactory balance between a variety of characteristics is provided so that the sealing structure is simplified and the quantity of the sealing material is reduced. As a result, a solar cell, the cost of which can significantly be reduced and which can be operated stably for a long time while exhibiting excellent performance can be provided. A suitable resin composition for sealing contains at least a hardening resin and a thermoplastic resin which has a number average molecular weight larger than the number average molecular weight of the hardening resin and which is soluble in the hardening resin.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 14, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Toma, Toshihiko Mimura, Nobuyoshi Takehara, Koji Tsuzuki
  • Method of making solar cell
    Patent number: 5393695
    Abstract: A solar cell has a photoelectric conversion semiconductor layer and an electrode made of a material containing a conductive base material and a resin binder electrically connected to the photoelectric conversion semiconductor layer, wherein the volume of voids in the electrode having a diameter of 0.1 .mu.m or greater is 0.04 ml/g or less.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: February 28, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuyoshi Takehara
  • Photovoltaic element and method for forming the same
    Patent number: 5340409
    Abstract: A photovoltaic element has a photoelectric conversion layer and a collecting electrode formed thereon by curing a paste having at least an electroconductive base substance and a curable resin formed on the photoelectric conversion layer. The number average molecular weight of the curable resin is 3000 or less.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: August 23, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Tsuzuki, Nobuyoshi Takehara
  • Solar cell
    Patent number: 5318638
    Abstract: A solar cell has a photoelectric conversion semiconductor layer and an electrode made of a material containing a conductive base material and a resin binder electrically connected to the photoelectric conversion semiconductor layer, wherein the volume of voids in the electrode having a diameter of 0.1 .mu.m or greater is 0.04 ml/g or less.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: June 7, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuyoshi Takehara