Patents by Inventor Kenshiro Abe

Kenshiro Abe 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).

  • Image forming apparatus to which a process cartridge having a part connecting member is detachably mountable, process cartridge having a part connecting member, and part connecting member
    Patent number: 6654578
    Abstract: A synthetic resin part connecting member connects at least two injection molded pieces that can be used as frames for a process cartridge detachably mountable on an image forming apparatus. The molded pieces are set in dies different from the dies used for forming the molded pieces, and a molten resin is injected into a gap formed between opposed surfaces of the molded pieces. An injection channel for the molten resin up to the gap is formed in one of the molded pieces. A rib for stopping resin is provided in the injection channel to stop the flow of the molten resin injected into the injection channel.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: November 25, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Suzuki, Kenshiro Abe, Tadayuki Tsuda, Kouichi Hiratsuka
  • Connecting method of resin material molded product, process cartridge and assembling method of process cartridge
    Patent number: 6415121
    Abstract: A bonding method for bonding molded resin products, includes the step of bonding a first one of the molded resin products and a second one of the molded resin products by injecting resin material through a resin material injection path to a bonding portion therebetween, wherein the resin material injection path is formed in one of or both of the first resin material molded product and the second resin material molded product.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: July 2, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Suzuki, Kenshiro Abe, Tadayuki Tsuda, Shinichi Sasaki, Shigeo Miyabe, Kouichi Hiratsuka
  • Part connecting member, process cartridge, and electrophotographic image forming apparatus
    Publication number: 20020037179
    Abstract: In a part connecting member made from synthetic resin, at least two molded pieces obtained by the injection molding of plastic are provisionally connected by being adjacently arranged or abut against each other. The provisionally connected body is set in a die different from the dies used for the formation of each molded piece. Then, in a state such that each molded piece and the die are positioned, the molded pieces are joined by the injection of a molten resin material for joining into a gap formed between the opposed surfaces of the molded pieces that are adjacently arranged or abut against each other. An injection channel of the molten resin up to the gap is formed by using one of the molded pieces forming the gap of the opposed surfaces that are adjacently arranged or abut against each other.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 28, 2002
    Inventors: Akira Suzuki, Kenshiro Abe, Tadayuki Tsuda, Kouichi Hiratsuka
  • Toner container, development cartridge, and process cartridge
    Patent number: 6246853
    Abstract: A toner container usable with an electrophotographic image forming apparatus, for containing toner, the toner container includes a first frame of plastic resin material; a second frame of plastic resin material; a bonding portion where the first and second frames are connected with each other by bonding material; a fitting portion, adjacent the connecting portion, where a projection provided in the second frame is fitted into a pit provided in the first frame.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: June 12, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Suzuki, Kenshiro Abe, Shinichi Sasaki, Kouji Hashimoto