US 7,575,800 B2
Sliding parts, precision parts and timepieces and electronic equipment using the same
Morinobu Endo, Suzaka (Japan); Tetsuo Uchiyama, Tokyo (Japan); Akio Yamaguchi, Kasugai (Japan); Teruaki Yuoka, Komaki (Japan); Hiroshi Aoyama, Nagoya (Japan); Kazutoshi Takeda, Sakura (Japan); Yoshifumi Maehara, Yachiyo (Japan); Masato Takenaka, Misato (Japan); Koichiro Jujo, Kisarazu (Japan); Shigeo Suzuki, Ichikawa (Japan); and Takeshi Tokoro, Tokyo (Japan)
Assigned to Kitagawa Industries Co., Ltd., Nagoya-shi (Japan); and Seiko Instruments Inc., Chiba-shi (Japan)
Appl. No. 10/494,000
PCT Filed Oct. 31, 2002, PCT No. PCT/JP02/11393
§ 371(c)(1), (2), (4) Date Nov. 22, 2004,
PCT Pub. No. WO03/037988, PCT Pub. Date May 08, 2003.
Claims priority of application No. 2001-337966 (JP), filed on Nov. 02, 2001; and application No. 2001-387524 (JP), filed on Dec. 20, 2001.
Prior Publication US 2005/0078561 A1, Apr. 14, 2005
Int. Cl. B32B 25/02 (2006.01); B32B 27/00 (2006.01); B32B 3/26 (2006.01); B32B 27/08 (2006.01)
U.S. Cl. 428—296.7  [428/299.1; 428/474.4; 428/411.1; 428/370; 428/412] 6 Claims
OG exemplary drawing
 
1. A sliding part formed by a composite material comprising a fibrous filler dispersed in a matrix resin; wherein, the degree of orientation of the fibrous filler is higher at the portion that serves as the sliding surface than that inside the sliding part, and the fibrous filler is oriented along the sliding surface on the sliding surface, and the fibrous filler consists of vapor grown carbon fibers having the density of 0.05-0.1 g/cm3.