Inventor · disambiguated record
Yoji Shimojima
Also filed as: SHIMOJIMA YOJI
12 granted patents·349 citations·filing 1984–1988
92Inventor score
Top patents by PatentIndex Score
12 records- 0197US4806751ACode wheel for a reflective type optical rotary encoderALPS ELECTRIC CO LTD·Filed 1988·Granted Feb 21, 1989·167 cites·1 claims
- 0284US4684210ALight transmission deviceALPS ELECTRIC CO LTD·Filed 1985·Granted Aug 4, 1987·58 cites·3 claims
- 0371US4725723AOptical rotary encoder with light monitoring and controlALPS ELECTRIC CO LTD·Filed 1985·Granted Feb 16, 1988·22 cites·2 claims
- 0470US4650995AReflection type optical rotary encoderALPS ELECTRIC CO LTD·Filed 1985·Granted Mar 17, 1987·21 cites·2 claims
- 0568US4705348AOptical switchALPS ELECTRIC CO LTD·Filed 1984·Granted Nov 10, 1987·22 cites·2 claims
- 0659US4580871ARotary encoderALPS ELECTRIC CO LTD·Filed 1984·Granted Apr 8, 1986·12 cites·5 claims
- 0755US4727356AOptical rotary encoderALPS ELECTRIC CO LTD·Filed 1986·Granted Feb 23, 1988·14 cites·2 claims
- 0855US4580130ARotary encoderALPS ELECTRIC CO LTD·Filed 1984·Granted Apr 1, 1986·11 cites·2 claims
- 0951US4894533AOptical rotary encoderABE HIRAKU·Filed 1988·Granted Jan 16, 1990·12 cites·2 claims
- 1037US4617460AOptical fiber sensor having shaped endsALPS ELECTRIC CO LTD·Filed 1984·Granted Oct 14, 1986·4 cites·4 claims
- 1134US4634862AMethod of fabricating rotor of optical rotary encoderALPS ELECTRIC CO LTD·Filed 1984·Granted Jan 6, 1987·2 cites·3 claims
- 1234US4606223ADevice for detecting rotating speed of thin shape motorALPS ELECTRIC CO LTD·Filed 1984·Granted Aug 19, 1986·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →