Patents by Inventor Kunitoshi Kajiwara

Kunitoshi Kajiwara 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: 10465797
    Abstract: A gasket capable of surely preventing leakage of a fluid, without deteriorating a sealing performance even when a situation of fall of surface pressure at a periphery edge of a through hole occurs is provided.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: November 5, 2019
    Assignees: ISHIKAWA GASKET CO., LTD., Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kisho Yasuda, Akira Yoshihara, Hiroki Imada, Masayuki Yano, Kunitoshi Kajiwara
  • Publication number: 20190024798
    Abstract: A gasket capable of surely preventing leakage of a fluid, without deteriorating a sealing performance even when a situation of fall of surface pressure at a periphery edge of a through hole occurs is provided.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 24, 2019
    Inventors: Kisho Yasuda, Akira Yoshihara, Hiroki Imada, Masayuki Yano, Kunitoshi Kajiwara
  • Patent number: 7204223
    Abstract: A structure of a cylinder block includes the cylinder block having a number of cylinders; a plurality of bearing caps supporting a crankshaft along with the cylinder block; a bearing cap beam supporting each of the plural bearing caps; a number of cap bolts fastening the plural bearing caps and the bearing cap beam to the cylinder block; and beam bolts fixing the bearing cap beam to a skirt portion of the cylinder block; a plurality of baffles each of which protruding from the bearing cap beam along a rotation path of a part of the crankshaft; and a number of vertical walls engaging the plural bearing cap beam with the baffles in a vertical direction.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 17, 2007
    Assignees: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kunitoshi Kajiwara, Yoshifumi Yamashita, Tomoya Bokkai, Tetsuro Miyashita, Masayuki Kamo, Shinichi Murata
  • Patent number: 7198018
    Abstract: A cylinder block in an engine including: the cylinder block; a plurality of bearing caps for supporting a crankshaft mounted to the cylinder block; a number of cap bolts fixing the plural bearing caps to the cylinder block; a plurality of bearing cap beams, disposed one beneath each of the plural bearing caps, supporting the plural bearing caps; and a number of beam bolts fixing the plural bearing cap beams to a skirt portion of the cylinder block, wherein each of the plural bearing cap beams and the corresponding one of the plural bearing cap are fixed to the cylinder block by two or more of the cap bolts, and two or more of the cap bolts and two or more beam bolts associated with a same one of the plural bearing cap beams are disposed at close proximity sequentially.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 3, 2007
    Assignees: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kunitoshi Kajiwara, Yoshifumi Yamashita, Tomoya Bokkai, Tetsuro Miyashita, Masayuki Kamo, Shinichi Murata
  • Patent number: 7114480
    Abstract: There is provided a V-type engine in which banks of an engine block are offset in the same direction as the rotational direction of a crankshaft so that the banks may be displaced toward an end of a vehicle body. On the offset side, engine accessory is mounted on a side of the engine block and below the banks. The width between the end of the engine accessory to which an impact is input first among component parts of the engine block and the end of the rear bank where the engine block moved due to the impact is abutted first on a vehicle body member is set to be shorter than in a conventional engine. Therefore, the crushable zone may be increased even in a limited engine compartment.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: October 3, 2006
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Shinichi Murata, Masayuki Kamo, Kunitoshi Kajiwara, Daisuke Kitada
  • Publication number: 20060081210
    Abstract: A cylinder block in an engine including: the cylinder block; a plurality of bearing caps for supporting a crankshaft mounted to the cylinder block; a number of cap bolts fixing the plural bearing caps to the cylinder block; a plurality of bearing cap beams, disposed one beneath each of the plural bearing caps, supporting the plural bearing caps; and a number of beam bolts fixing the plural bearing cap beams to a skirt portion of the cylinder block, wherein each of the plural bearing cap beams and the corresponding one of the plural bearing cap are fixed to the cylinder block by two or more of the cap bolts, and two or more of the cap bolts and two or more beam bolts associated with a same one of the plural bearing cap beams are disposed at close proximity sequentially.
    Type: Application
    Filed: March 29, 2005
    Publication date: April 20, 2006
    Applicants: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kunitoshi Kajiwara, Yoshifumi Yamashita, Tomoya Bokkai, Tetsuro Miyashita, Masayuki Kamo, Shinichi Murata
  • Publication number: 20050217630
    Abstract: A structure of a cylinder block includes the cylinder block having a number of cylinders; a plurality of bearing caps supporting a crankshaft along with the cylinder block; a plurality of bearing cap beams supporting the plural bearing caps; a number of cap bolts fastening the plural bearing caps and the bearing cap beam to the cylinder block; and beam bolts fixing the bearing cap beam to a skirt portion of the cylinder block; one or more baffles each of which protrudes from the bearing cap beam along a rotation path of a part of the crankshaft, and vertical walls engaging the plural bearing cap beam with the baffles in a vertical direction, so that the cylinder block is enhanced in stiffness and concurrently reduce friction caused by rotation of the crankshaft.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Applicants: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kunitoshi Kajiwara, Yoshifumi Yamashita, Tomoya Bokkai, Tetsuro Miyashita, Masayuki Kamo, Shinichi Murata
  • Patent number: 6920869
    Abstract: There is provided a V-type engine, in which deck cylinder parts of a cylinder block are offset in the same direction as a rotational direction of a crankshaft, and oil separation chambers are provided at an upper portion of the cylinder head displaced to a lower side by the offset. Therefore, an allowance in the axial direction of cylinders may be provided above a cylinder head of the deck cylinder parts on the lower side, and the capacity of the oil separation chambers is increased by the allowance so that the oil separation performance may be improved, while an increase in the total width and total height of an engine block is suppressed.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: July 26, 2005
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Shinichi Murata, Masayuki Kamo, Kunitoshi Kajiwara, Daisuke Kitada
  • Publication number: 20050011695
    Abstract: There is provided a V-type engine in which banks of an engine block are offset in the same direction as the rotational direction of a crankshaft so that the banks may be displaced toward an end of a vehicle body. On the offset side, engine accessory is mounted on a side of the engine block and below the banks. The width between the end of the engine accessory to which an impact is input first among component parts of the engine block and the end of the rear bank where the engine block moved due to the impact is abutted first on a vehicle body member is set to be shorter than in a conventional engine. Therefore, the crushable zone may be increased even in a limited engine compartment.
    Type: Application
    Filed: June 3, 2004
    Publication date: January 20, 2005
    Inventors: Shinichi Murata, Masayuki Kamo, Kunitoshi Kajiwara, Daisuke Kitada
  • Publication number: 20050011476
    Abstract: There is provided a V-type engine, in which deck cylinder parts of a cylinder block are offset in the same direction as a rotational direction of a crankshaft, and oil separation chambers are provided at an upper portion of the cylinder head displaced to a lower side by the offset. Therefore, an allowance in the axial direction of cylinders may be provided above a cylinder head of the deck cylinder parts on the lower side, and the capacity of the oil separation chambers is increased by the allowance so that the oil separation performance may be improved, while an increase in the total width and total height of an engine block is suppressed.
    Type: Application
    Filed: June 3, 2004
    Publication date: January 20, 2005
    Inventors: Shinichi Murata, Masayuki Kamo, Kunitoshi Kajiwara, Daisuke Kitada