Kenji Takahashi

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electric power conversion/inversion apparatus
- Patent number 6,618,278
- Issue date Sep 9, 2003
- Hitachi, Ltd.
- Osamu Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Totally-enclosed type motor
- Patent number 5,925,947
- Issue date Jul 20, 1999
- Hitachi, Ltd.
- Kenzo Kajiwara
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Radio communication apparatus with expanded dynamic range
- Patent number 5,689,814
- Issue date Nov 18, 1997
- Hitachi, Ltd.
- Hiroshi Hagisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fluid temperature control system and computer system using same
- Patent number 5,058,389
- Issue date Oct 22, 1991
- Hitachi, Ltd.
- Hiromu Yasuda
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
LSI temperature control system
- Patent number 5,052,472
- Issue date Oct 1, 1991
- Hitachi, Ltd.
- Kenji Takahashi
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Falling film evaporator
- Patent number 4,918,944
- Issue date Apr 24, 1990
- Hitachi, Ltd.
- Kenji Takahashi
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Refrigerating apparatus
- Patent number 4,910,968
- Issue date Mar 27, 1990
- Hitachi, Ltd.
- Tetsuji Yamashita
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Method of producing a heat transfer tube for single-phase flow
- Patent number 4,794,775
- Issue date Jan 3, 1989
- Hitachi, Ltd.
- Heikichi Kuwahara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Construction of a heat transfer wall of a heat transfer pipe
- Patent number 4,715,436
- Issue date Dec 29, 1987
- Hitachi, Ltd.
- Kenji Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Heat transfer tube for single phase flow
- Patent number 4,690,211
- Issue date Sep 1, 1987
- Hitachi, Ltd.
- Heikichi Kuwahara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing a heat transfer wall for vaporizing liquids
- Patent number 4,653,163
- Issue date Mar 31, 1987
- Hitachi, Ltd.
- Heikichi Kuwahara
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Device for cross-linking of coating material such as rubber or plas...
- Patent number 4,174,677
- Issue date Nov 20, 1979
- Hitachi Cable, Ltd.
- Hiroo Nagano
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Rotating electric machine
- Publication number 20040119347
- Publication date Jun 24, 2004
- Hitachi, Ltd.
- Tetsuo Fujigaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Rotating electric machine
- Publication number 20040119372
- Publication date Jun 24, 2004
- Hitachi, Ltd.
- Tetsuo Fujigaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Rotating electric machine
- Publication number 20030173837
- Publication date Sep 18, 2003
- Tetsuo Fujigaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electric power conversion/inversion apparatus
- Publication number 20020034087
- Publication date Mar 21, 2002
- Osamu Suzuki
- H01 - BASIC ELECTRIC ELEMENTS

Kenji Takahashi

Person

Patents Grantslast 30 patents

Electric power conversion/inversion apparatus

Totally-enclosed type motor

Radio communication apparatus with expanded dynamic range

Fluid temperature control system and computer system using same

LSI temperature control system

Falling film evaporator

Refrigerating apparatus

Method of producing a heat transfer tube for single-phase flow

Construction of a heat transfer wall of a heat transfer pipe

Heat transfer tube for single phase flow

Method for producing a heat transfer wall for vaporizing liquids

Device for cross-linking of coating material such as rubber or plas...

Patents Applicationslast 30 patents

Rotating electric machine

Rotating electric machine

Rotating electric machine

Electric power conversion/inversion apparatus