Koya-Sha Co., Ltd.
1Patents
0Active
1Granted
22Portfolio score
Filing activity: Apr 3, 1989 → Apr 3, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4949511A | Super abrasive grinding tool element and grinding tool | Performing Operations; Transporting | 46 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.