Inventor
IWASHITA TAKATSUGU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “IWASHITA TAKATSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIKOKU PISTON RING CO LTD
4 patentsUS6325385B1Dec 4, 2001
Piston ring
TEIKOKU PISTON RING CO LTD116 citations97
US6279913B1Aug 28, 2001
Sliding member and manufacturing method thereof
TEIKOKU PISTON RING CO LTD53 citations95
US6142481ANov 7, 2000
Piston ring
TEIKOKU PISTON RING CO LTD41 citations92
US6139022AOct 31, 2000
Piston ring
TEIKOKU PISTON RING CO LTD49 citations92