Katsumi Matsubara

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ice thermal storage type air conditioner and ice thermal storage tank
- Patent number 6,253,567
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Masao Imanari
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ice thermal storage type air-conditioner and ice thermal storage tank
- Patent number 6,101,837
- Issue date Aug 15, 2000
- Hitachi, Ltd.
- Masao Imanari
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Screw-type rotary fluid machine including rotors having treated sur...
- Patent number 5,314,321
- Issue date May 24, 1994
- Hitachi, Ltd.
- Akihiko Yamamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of treating surfaces of rotors of the screw type rotary machine
- Patent number 5,223,052
- Issue date Jun 29, 1993
- Hitachi, Ltd.
- Akihiko Yamamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Screw type vacuum pump with introduced inert gas
- Patent number 4,984,974
- Issue date Jan 15, 1991
- Hitachi, Ltd.
- Koutarou Naya
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Scroll type pump with wrap curve offset for thermal expansion
- Patent number 4,773,835
- Issue date Sep 27, 1988
- Hitachi, Ltd.
- Shigeru Machida
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Screw type vacuum pump
- Patent number 4,714,418
- Issue date Dec 22, 1987
- Hitachi, Ltd.
- Katsumi Matsubara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Operation control system of rotary displacement type vacuum pump
- Patent number 4,664,601
- Issue date May 12, 1987
- Hitachi, Ltd.
- Riichi Uchida
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Rotary fluid machine with thrust bearing mounting unit
- Patent number 4,557,679
- Issue date Dec 10, 1985
- Hitachi, Ltd.
- Hidetomo Mori
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Screw compressor
- Patent number 4,234,296
- Issue date Nov 18, 1980
- Hitachi, Ltd.
- Katsumi Matsubara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Screw fluid machine
- Patent number 4,174,196
- Issue date Nov 13, 1979
- Hitachi, Ltd.
- Hidetomo Mori
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Katsumi Matsubara

Person

Patents Grantslast 30 patents

Ice thermal storage type air conditioner and ice thermal storage tank

Ice thermal storage type air-conditioner and ice thermal storage tank

Screw-type rotary fluid machine including rotors having treated sur...

Method of treating surfaces of rotors of the screw type rotary machine

Screw type vacuum pump with introduced inert gas

Scroll type pump with wrap curve offset for thermal expansion

Screw type vacuum pump

Operation control system of rotary displacement type vacuum pump

Rotary fluid machine with thrust bearing mounting unit

Screw compressor

Screw fluid machine