Akihiko Yamamoto

Person

Niihari, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Crawler
- Patent number 6,634,725
- Issue date Oct 21, 2003
- Hitachi Construction Machinery Co., Ltd.
- Genroku Sugiyama
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Displacement type compressor and method of forming coating film
- Patent number 6,079,963
- Issue date Jun 27, 2000
- Hitachi, Ltd.
- Yoshishige Endo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Scroll compressor with oiling mechanism
- Patent number 5,947,709
- Issue date Sep 7, 1999
- Hitachi, Ltd.
- Masaki Koyama
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Scroll compressor with oiling mechanism
- Patent number 5,716,202
- Issue date Feb 10, 1998
- Hitachi, Ltd.
- Masaki Koyama
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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
Method for correcting drift of printing position and printing appar...
- Patent number 5,069,556
- Issue date Dec 3, 1991
- Hitachi, Ltd.
- Hideki Sasaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sealed structure and production method thereof
- Patent number 4,872,606
- Issue date Oct 10, 1989
- Hitachi, Ltd.
- Motohiro Satoh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sealing structure, method of soldering and process for preparing se...
- Patent number 4,854,495
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Akihiko Yamamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of bonding alumina to metal
- Patent number 4,699,310
- Issue date Oct 13, 1987
- Hitachi, Ltd.
- Akiomi Kohno
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for bonding ceramics to metals
- Patent number 4,624,403
- Issue date Nov 25, 1986
- Hitachi, Ltd.
- Akiomi Kohno
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for heat treatment of titanium alloy
- Patent number 4,098,623
- Issue date Jul 4, 1978
- Hitachi, Ltd.
- Yoshiro Ibaraki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Communication system
- Publication number 20040242200
- Publication date Dec 2, 2004
- Hitachi, Ltd
- Jun Maeoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Displacement type compressor and method of forming coating film
- Publication number 20030164352
- Publication date Sep 4, 2003
- Yoshishige Endo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Crawler
- Publication number 20030000747
- Publication date Jan 2, 2003
- Genroku Sugiyama
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Akihiko Yamamoto

Person

Patents Grantslast 30 patents

Crawler

Displacement type compressor and method of forming coating film

Scroll compressor with oiling mechanism

Scroll compressor with oiling mechanism

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

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

Method for correcting drift of printing position and printing appar...

Sealed structure and production method thereof

Sealing structure, method of soldering and process for preparing se...

Method of bonding alumina to metal

Method for bonding ceramics to metals

Method for heat treatment of titanium alloy

Patents Applicationslast 30 patents

Communication system

Displacement type compressor and method of forming coating film

Crawler