Inventor · disambiguated record
Toshimasa Ishida
Also filed as: ISHIDA TOSHIMASA
5 granted patents·81 citations·filing 1984–1991
82Inventor score
Files withOKI ELECTRIC IND CO LTD5
Top patents by PatentIndex Score
5 records- 0159US5086349AOptical switching system which employs reference beams with different wavelengthsOKI ELECTRIC IND CO LTD·Filed 1990·Granted Feb 4, 1992·23 cites·14 claims
- 0252US5153934AWaveguide-type optical deviceOKI ELECTRIC IND CO LTD·Filed 1991·Granted Oct 6, 1992·17 cites·25 claims
- 0352US5123069AWaveguide-type optical switchOKI ELECTRIC IND CO LTD·Filed 1991·Granted Jun 16, 1992·18 cites·42 claims
- 0451US4586063ASchottky barrier gate FET including tungsten-aluminum alloyOKI ELECTRIC IND CO LTD·Filed 1984·Granted Apr 29, 1986·11 cites·1 claims
- 0542US5133028AOptical wave-length filter and a driving method thereofOKI ELECTRIC IND CO LTD·Filed 1991·Granted Jul 21, 1992·12 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Toshimasa Ishida files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →