Inventor · disambiguated record
Kiyoshi Touma
Also filed as: TOUMA KIYOSHI
4 granted patents·38 citations·filing 1987–1990
74Inventor score
Files withCOPAL CO LTD4
Top patents by PatentIndex Score
4 records- 0175US4984003ADevice for opening and closing shutter blade without bounceCOPAL CO LTD·Filed 1989·Granted Jan 8, 1991·15 cites·7 claims
- 0251US4987435ACompact camera with apparatus size adjustment by zoomingCOPAL CO LTD·Filed 1990·Granted Jan 22, 1991·17 cites·12 claims
- 0340US4791442ACamera shutter using an electrostrictive strain element as a driving sourceCOPAL CO LTD·Filed 1987·Granted Dec 13, 1988·4 cites·3 claims
- 0432US4786930ALens shutter using an electrostrictive strain element as driving source meansCOPAL CO LTD·Filed 1987·Granted Nov 22, 1988·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →