Patents by Inventor Junichi Hamamoto

Junichi Hamamoto 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: 6918797
    Abstract: The connector includes a first housing with a first engagement part. A holder is configured to be mounted to the first housing. The holder has a first mating part corresponding to the first engagement part. The holder has a second engagement part for engagement of the first engagement part and the first mating part.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 19, 2005
    Assignee: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Junichi Hamamoto
  • Patent number: 6655025
    Abstract: The connector includes a first housing with a first engagement part. A holder is configured to be mounted to the first housing. The holder has a first mating part corresponding to the first engagement part. The holder has a second engagement part for engagement of the first engagement part and the first mating part.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: December 2, 2003
    Assignee: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Junichi Hamamoto
  • Patent number: 6638047
    Abstract: A molding machine comprising an injection portion with an injection nozzle which injects a molding material, a turntable comprising a rotation driving apparatus, a plurality of molds placed along a peripheral edge of the turntable, an attaching and detaching station, an injection station and a plurality of curing stations. Each mold comprises a material receiving port communicating with the injection nozzle when the mold is positioned at the injection station. Each mold further comprises a mechanism which close the material receiving port so as to prevent the molding material from flowing backward when the mold is separated from the injection nozzle. The molds are transferred by rotation of the turntable to each station one by one. Primary formed products are attached to the molds at the attaching and detaching station, injected at the injection station, cured to be second formed products at the curing stations and finally took out at the attaching and detaching station.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: October 28, 2003
    Assignee: Yazaki Corporation
    Inventors: Fumio Asai, Norio Kawamura, Yoshiyuki Akiyama, Hiroshi Murashita, Junichi Hamamoto, Toshihiro Kitagawa
  • Patent number: 6536108
    Abstract: In a production apparatus (1), after rear holders (7a, 7b) and a housing body (8) are molded by molding die cavities, slides (11a, 11b) are moved apart from the housing body (8). Then, cylinders (16a, 16b) are driven to move the rear holders (7a, 7b), holders (13a, 13b) and the slides (11a, 11b) together with slide plates (14a, 14b), so that the rear holders (7a, 7b) are located in opposed relation to the housing body (8). Then, cylinders (19a, 19b) are driven to move the rear holders (7a, 7b) toward the housing body (8), thereby provisionally retaining the rear holders (7a, 7b) on the housing body (8). Therefore, the amount of movement of the slides (11a, 11b) is small, and it is not necessary to provide any space for holding the slides (11a, 11b), moved into their respective stand-by positions, and therefore the small-size design of the production apparatus can be achieved, and also the production efficiency can be enhanced.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 25, 2003
    Assignee: Yazaki Corporation
    Inventors: Norio Kawamura, Hiroshi Murashita, Junichi Hamamoto, Takashi Masuda, Toshimi Nakashima, Kazuhiko Hiraguchi, Kenji Takahashi
  • Publication number: 20020133938
    Abstract: The connector includes a first housing with a first engagement part. A holder is configured to be mounted to the first housing. The holder has a first mating part corresponding to the first engagement part. The holder has a second engagement part for engagement of the first engagement part and the first mating part.
    Type: Application
    Filed: May 23, 2002
    Publication date: September 26, 2002
    Applicant: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Junichi Hamamoto
  • Publication number: 20020137402
    Abstract: The connector includes a first housing with a first engagement part. A holder is configured to be mounted to the first housing. The holder has a first mating part corresponding to the first engagement part. The holder has a second engagement part for engagement of the first engagement part and the first mating part.
    Type: Application
    Filed: May 23, 2002
    Publication date: September 26, 2002
    Applicant: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Junichi Hamamoto
  • Publication number: 20020071886
    Abstract: A molding machine comprising an injection portion with an injection nozzle which injects a molding material, a turntable comprising a rotation driving apparatus, a plurality of molds placed along a peripheral edge of the turntable, an attaching and detaching station, an injection station and a plurality of curing stations. Each mold comprises a material receiving port communicating with the injection nozzle when the mold is positioned at the injection station. Each mold further comprises a mechanism which close the material receiving port so as to prevent the molding material from flowing backward when the mold is separated from the injection nozzle. The molds are transferred by rotation of the turntable to each station one by one. Primary formed products are attached to the molds at the attaching and detaching station, injected at the injection station, cured to =be second formed products at the curing stations and finally took out at the attaching and detaching station.
    Type: Application
    Filed: September 26, 2001
    Publication date: June 13, 2002
    Inventors: Tomio Asai, Norio Kawamura, Yoshiyuki Akiyama, Hiroshi Murashita, Junichi Hamamoto, Toshihiro Kitagawa
  • Publication number: 20010051468
    Abstract: The connector includes a first housing with a first engagement part. A holder is configured to be mounted to the first housing. The holder has a first mating part corresponding to the first engagement part. The holder has a second engagement part for engagement of the first engagement part and the first mating part.
    Type: Application
    Filed: May 30, 2001
    Publication date: December 13, 2001
    Applicant: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Junichi Hamamoto
  • Publication number: 20010003867
    Abstract: In a production apparatus (1), after rear holders (7a, 7b) and a housing body (8) are molded by molding die cavities, slides (11a, 11b) are moved apart from the housing body (8). Then, cylinders (16a, 16b) are driven to move the rear holders (7a, 7b), holders (13a, 13b) and the slides (11a, 11b) together with slide plates (14a, 14b), so that the rear holders (7a, 7b) are located in opposed relation to the housing body (8). Then, cylinders (19a, 19b) are driven to move the rear holders (7a, 7b) toward the housing body (8), thereby provisionally retaining the rear holders (7a, 7b) on the housing body (8). Therefore, the amount of movement of the slides (11a, 11b) is small, and it is not necessary to provide any space for holding the slides (11a, 11b), moved into their respective stand-by positions, and therefore the small-size design of the production apparatus can be achieved, and also the production efficiency can be enhanced.
    Type: Application
    Filed: December 19, 2000
    Publication date: June 21, 2001
    Inventors: Norio Kawamura, Hiroshi Murashita, Junichi Hamamoto, Takashi Masuda, Toshimi Nakashima, Kazuhiko Hiraguchi, Kenji Takahashi
  • Patent number: 5709831
    Abstract: A method of producing a connector with a rear holder, wherein a housing 2 and a rear holder 3 are molded separately from each other by a set of molds 31 to 34. After molding, one of the molds (33) is moved to form a space between the housing 2 and the rear holder 3, and using another (34) of the molds, the rear holder 3 is moved toward the housing 2, thereby provisionally retaining the rear holder 3 on the housing 2.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: January 20, 1998
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Yuji Hatagishi, Nolio Kawamura, Junichi Hamamoto, Motohisa Kashiyama, Yasuhiro Yamaguchi, Toshihiko Yamamoto, Takeyuki Hamaguchi