Patents by Inventor Iwao Murakami

Iwao Murakami 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).

  • Publication number: 20060173114
    Abstract: Polyamide resin composition for fuse element consisting of 95-5% by mass of polyamide copolymer (A) and 5-95% by mass of polyamide homopolymer (B). Above-mentioned polyamide resin composition for fuse element, wherein a silicate layer (C) of swellable lamellar silicate is dispersed on molecular order level and the content of the silicate layer (C) is 0.1-20% by mass. A fuse element which has a housing and a pair of terminals projecting from the prescribed flat surface of the housing and standing in a parallel and accommodates a fuse-element connecting between the base ends of said two terminals in said housing, wherein the housing is made of said polyamide resin composition.
    Type: Application
    Filed: April 14, 2006
    Publication date: August 3, 2006
    Inventors: Koji Fujimoto, Iwao Murakami, Hideki Andoh
  • Publication number: 20060020071
    Abstract: The present invention is to provide a polyamide resin composition for fuse elements, assuring sufficient arc resistance upon boosting of vehicles voltage (e.g., 42 V system), being excellent in rigidity, heat resistance and transparency. The present invention relates to a polyamide resin composition for fuse elements, comprising: a mixed polyamide 100 parts by mass consisting of (A) polycaproamide (nylon 6) 95 to 5% by mass and (B) poly(hexamethylene adipamide) (nylon 66) 5 to 95% by mass; and (C) asilicatelayerof lamellarsilicate 0.1 to 20 parts by mass dispersed on molecular order level in the above described (A) and/or (B). The polyamide resin composition may further contain (D) an antioxidant, (E) a metal soap based lubricant, and/or (F) an inorganic fibrous reinforcing material are contained. The present invention also relates to a fuse element formed from the polyamide resin composition for fuse elements.
    Type: Application
    Filed: September 19, 2005
    Publication date: January 26, 2006
    Inventors: Masaaki Yamazaki, Koji Fujimoto, Iwao Murakami, Hideki Andoh
  • Patent number: 6967560
    Abstract: A compact fuse (1) for an automobile is provided. The fuse is formed by a fuse element (2) and an insulative housing (3) having a cutaway portion (8). The fuse element includes two base plates (4) and a melting portion (5) connecting the base plates. The melting portion is accommodated in the housing and parts of the base plates are exposed from the housing. The length of the base plate is the sum of the length (A) of the melting portion in the longitudinal direction of the base plate, the length (B) of a notch (4c) in the longitudinal direction of the base plate, and the length (C) of a cover supporting portion in the longitudinal direction of the base plate.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: November 22, 2005
    Assignee: Pacific Engineering Corp.
    Inventors: Hideki Andoh, Iwao Murakami
  • Patent number: 6883538
    Abstract: A flow control valve coupling structure that does not require complicated machining and facilitates the installation of a flow control valve. The coupling structure includes a fitting portion having a male thread that is formed on a peripheral surface of the flow control valve. A coupled member has a coupling hole to receive the flow control valve. A cylindrical elastic sealing member is engaged with the coupling hole to seal the space between the flow control valve and the coupling hole. The elastic sealing member has an inner surface defining a mounting hole in which the fitting portion is fitted. A female thread is formed on the inner surface and is mated with the male thread of the fitting portion.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: April 26, 2005
    Assignees: Pacific Engineering Corp., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masayuki Toyokawa, Hiromu Nakamura, Ryohei Adachi, Iwao Murakami, Chikashi Ono
  • Publication number: 20040132921
    Abstract: Polyamide resin composition for fuse element consisting of 95-5% by mass of polyamide copolymer(A) and 5-95% by mass of polyamide homopolymer(B). Above-mentioned polyamide resin composition for fuse element, wherein a silicate layer(C) of swellable lamellar silicate is dispersed on molecular order level and the content of the silicate layer(C) is 0.1-20% by mass. A fuse element which has a housing and a pair of terminals projecting from the prescribed flat surface of the housing and standing in a parallel and accommodates a fuse-element connecting between the base ends of said two terminals in said housing, wherein the housing is made of said polyamide resin composition.
    Type: Application
    Filed: October 16, 2003
    Publication date: July 8, 2004
    Inventors: Koji Fujimoto, Iwao Murakami, Hideki Andoh
  • Publication number: 20040070485
    Abstract: A compact fuse (1) for an automobile is provided. The fuse is formed by a fuse element (2) and an insulative housing (3) having a cutaway portion (8). The fuse element includes two base plates (4) and a melting portion (5) connecting the base plates. The melting portion is accommodated in the housing and parts of the base plates are exposed from the housing. The length of the base plate is the sum of the length (A) of the melting portion in the longitudinal direction of the base plate, the length (B) of a notch (4c) in the longitudinal direction of the base plate, and the length (C) of a cover supporting portion in the longitudinal direction of the base plate.
    Type: Application
    Filed: November 10, 2003
    Publication date: April 15, 2004
    Inventors: Hideki Andoh, Iwao Murakami
  • Publication number: 20030055160
    Abstract: The present invention is to provide a polyamide resin composition for fuse elements, assuring sufficient arc resistance upon boosting of vehicles voltage (e.g., 42 V system), being excellent in rigidity, heat resistance and transparency.
    Type: Application
    Filed: August 7, 2002
    Publication date: March 20, 2003
    Inventors: Masaaki Yamazaki, Koji Fujimoto, Iwao Murakami, Hideki Andoh
  • Publication number: 20020062869
    Abstract: A flow control valve coupling structure that does not require complicated machining and facilitates the installation of a flow control valve. The coupling structure includes a fitting portion having a male thread that is formed on a peripheral surface of the flow control valve. A coupled member has a coupling hole to receive the flow control valve. A cylindrical elastic sealing member is engaged with the coupling hole to seal the space between the flow control valve and the coupling hole. The elastic sealing member has an inner surface defining a mounting hole in which the fitting portion is fitted. A female thread is formed on the inner surface and is mated with the male thread of the fitting portion.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 30, 2002
    Inventors: Masayuki Toyokawa, Hiromu Nakamura, Ryohei Adachi, Iwao Murakami, Chikashi Ono
  • Patent number: 5977859
    Abstract: A multielectrode type fuse element manufactured by forming a shallow shaving portion 1 of a definite width in the long fuse material 9 in a longitudinal direction so as to form a thin area 2, punching from portions of the thin area 2 dependently on electrical conduction capacities of fuses so as to form a plurality of blowout portions 3, 3, forming a hook-like extending portion 6 on one side across the thin area 2 at an upper end of an input terminal 4 disposed in a direction perpendicular to the longitudinal direction of the long fuse material 9, forming a plurality of output terminals 5, 5 by punching from the long fuse material on a side of the hook-like extending portion 6 of the input terminal 4 in parallel with the input terminal 4 at an equal pitch, and forming the blowout portions 3, 3 to connect one side of an upper portion of a vertical section of the input terminal 4 and a lower tip of the hook-like extending portion 6 with top end of the plurality of output terminals 5, 5.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: November 2, 1999
    Assignee: Pacific Engineering Company
    Inventors: Isao Kawamura, Iwao Murakami, Isato Kataoka
  • Patent number: 5218336
    Abstract: A resistor device for blower motor contains a plurality of PTC element plates having both side surfaces and disposed side by side substantially in a same plane. Each PTC element has an electrode formed on each of said both side surfaces thereof. The device has a plurality of terminal plates sandwiching the PTC element plates from the both side surfaces thereof.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: June 8, 1993
    Assignee: Pacific Engineering Co., Ltd.
    Inventor: Iwao Murakami
  • Patent number: D550631
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: September 11, 2007
    Assignee: Pacific Engineering Corp.
    Inventor: Iwao Murakami