Hisatsugu Tomioka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for installing escape device for slowly lowering a body
- Patent number 4,709,783
- Issue date Dec 1, 1987
- Lonseal
- Hisatsugu Tomioka
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Impeller type descent slowing device
- Patent number 4,655,327
- Issue date Apr 7, 1987
- Lonseal Corporation
- Hisatsugu Tomioka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...