Hisashi Nakamura

Follow

Person

Shiga, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multiple-purpose instantaneous gas water heater
- Patent number 4,922,861
- Issue date May 8, 1990
- Toto Ltd.
- Osamu Tsutsui
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Multiple-purpose instantaneous gas water heater
- Patent number 4,819,587
- Issue date Apr 11, 1989
- Toto Ltd.
- Osamu Tsutsui
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES