Kazuhiko Otsuka

Follow

Person

Nara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Device for golf practicing
- Patent number 4,852,882
- Issue date Aug 1, 1989
- Nitta Industries Corporation
- Kazuhiko Otsuka
- G02 - OPTICS
Information Patent Grant
Air cleaner
- Patent number 4,846,859
- Issue date Jul 11, 1989
- Nitta Co., Ltd.
- Koji Nobiraki
- F24 - HEATING RANGES VENTILATING