Inventor · disambiguated record
Hitoshi Otaka
Also filed as: OTAKA HITOSHI
4 granted patents·1 pending application·134 citations·filing 1986–2005
80Inventor score
Top patents by PatentIndex Score
5 records- 0177US5607490AFilter having chemical resistance, antistatic property and water vapor resistance, and process for producing the sameNITTETSU MINING CO LTD·Filed 1995·Granted Mar 4, 1997·38 cites·14 claims
- 0272US4864607AAnimated annunciator apparatusTOMY KOGYO CO·Filed 1988·Granted Sep 5, 1989·44 cites·4 claims
- 0366US5558689AReinforced filter elementNITTETSU MINING CO LTD·Filed 1995·Granted Sep 24, 1996·39 cites·32 claims
- 0448US4721437AAnimated annunciator apparatusTOMY KOGYO CO·Filed 1986·Granted Jan 26, 1988·13 cites·4 claims
- 0539US2009178915A1Gas-exciting apparatus having electrode containing insulating coating layer and gas-exciting processNITTETSU MINING CO LTD·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →