Assignee
YOKOYAMA SEISAKUSHO KK
JP·4 granted patents·44 citations·filing 1987–1987
Top patents by PatentIndex Score
4 records- 0164US4839952AProcess for manufacturing toothed partsYOKOYAMA SEISAKUSHO KK·Filed 1987·Granted Jun 20, 1989·17 cites·1 claims
- 0246US4800745ASpur gear automatic production processYOKOYAMA SEISAKUSHO KK·Filed 1987·Granted Jan 31, 1989·11 cites·2 claims
- 0340US4797986ASpur gear manufacturing processYOKOYAMA SEISAKUSHO KK·Filed 1987·Granted Jan 17, 1989·8 cites·1 claims
- 0440US4773248AProcess for manufacturing a part having a tooth profile and bossYOKOYAMA SEISAKUSHO KK·Filed 1987·Granted Sep 27, 1988·8 cites·5 claims
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