Patents Represented by Law Firm Shinjyu
  • Induction heating plated metal mold and its manufacture
    Patent number: 6059953
    Abstract: A metal plate for electromagnetic heating is disclosed which includes a substrate comprising aluminum or aluminum alloys, an intermediate layer formed on at least a portion of one surface of the substrate and comprising zinc or zinc alloys and a conductive layer formed on the intermediate layer for serving as a heat generating body when eddy current induced by high-frequency magnetic flux flows therethrough. Methods of manufacturing a metal plate for electromagnetic heating and a metallic mold for electromagnetic heating are also disclosed.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: May 9, 2000
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiyuki Hatta, Fumio Matsuyama, Masaya Nishi, Taichiro Nishikawa, Shuzo Nagai, Kenji Miyazaki, Shinji Inazawa
  • Flex plate and flywheel configuration
    Patent number: 6039651
    Abstract: A flywheel assembly 1 includes a flexible plate 3 and a flywheel 2. The flexible plate 3 has a rigidity in a rotation direction and flexibility in a bending direction, and is coupled at its radially inner portion to a crankshaft 100. An elastic plate body of the flexible plate 3 is provided at its inner periphery with a cylindrical support portion 16 projected away from the crankshaft 100. The flywheel 2 is fixed at its outer peripheral portion to an outer peripheral portion of the flexible plate 3. The flywheel 2 is provided at its inner periphery with a cylindrical portion 13 projected toward the flexible plate 3 and radially overlapping the cylindrical support portion 16.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 21, 2000
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Mitsuhiko Takenaka
  • Friction facing in slip-controlled lockup clutch configuration
    Patent number: 5954172
    Abstract: Oil is introduced into gaps between divided pieces forming a friction facing to enhance sealability of working oil of a lockup clutch upon operation of the lockup clutch to enhance sliding characteristics and durability of the friction facing. The friction facing 30 is included in the lockup clutch 2 of a torque convertor 1, and includes a plurality of divided pieces divided in the circumferential direction. Gaps that are out of fluid communication from the outer circumferential side to the inner circumferential side are provided between the divided pieces with the lockup clutch in an engaged state.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: September 21, 1999
    Assignee: Exedy Coporation
    Inventor: Masaki Mori
  • Seal structure and separate plate
    Patent number: 5947482
    Abstract: To improve a sealing function in a seal structure for sealing a passage formed between two members, seal portions 3 seals a passage 9 formed between a valve body 8 and a plate body 2 of a separate plate 1. The seal portions 3 is formed to have a constant width on the plate body 2 of the separate plate 1 corresponding to a shape of an end face portions 8a of the valve body 8.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: September 7, 1999
    Assignee: Exedy Corporation
    Inventor: Hiroyuki Iwata