Masaya Imai

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Oil feeding device for scroll fluid apparatus
- Patent number RE33473
- Issue date Dec 4, 1990
- Hitachi, Ltd.
- Eiichi Hazaki
- 418 - Rotary expansible chamber devices
Information Patent Grant
Oil feeding device for scroll fluid apparatus
- Patent number 4,555,224
- Issue date Nov 26, 1985
- Hitachi, Ltd.
- Eiichi Hazaki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Oil feeding device for scroll fluid apparatus
- Patent number 4,462,772
- Issue date Jul 31, 1984
- Hitachi, Ltd.
- Eiichi Hazaki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Screw rotor with specific tooth profile
- Patent number 4,406,602
- Issue date Sep 27, 1983
- Hitachi, Ltd.
- Katsuhiko Kasuya
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Male and female screw rotor assembly with specific tooth flanks
- Patent number 4,401,420
- Issue date Aug 30, 1983
- Hitachi, Ltd.
- Katsuhiko Kasuya
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Scroll-type fluid apparatus provided with means for counteracting a...
- Patent number 4,384,831
- Issue date May 24, 1983
- Hitachi, Ltd.
- Masato Ikegawa
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Scrool-type fluid machine with liquid-filled force-balanced pockets
- Patent number 4,350,479
- Issue date Sep 21, 1982
- Hitachi, Ltd.
- Kenji Tojo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Mechanical seal
- Patent number 4,145,059
- Issue date Mar 20, 1979
- Hitachi, Ltd.
- Masaya Imai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Masaya Imai

Person

Patents Grantslast 30 patents

Oil feeding device for scroll fluid apparatus

Oil feeding device for scroll fluid apparatus

Oil feeding device for scroll fluid apparatus

Screw rotor with specific tooth profile

Male and female screw rotor assembly with specific tooth flanks

Scroll-type fluid apparatus provided with means for counteracting a...

Scrool-type fluid machine with liquid-filled force-balanced pockets

Mechanical seal