Yoji Akutsu

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Welding equipment for fabricating a combustion liner
- Patent number 5,302,795
- Issue date Apr 12, 1994
- Hitachi, Ltd.
- Takeo Kurokawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of connecting superconducting wires
- Patent number 4,794,688
- Issue date Jan 3, 1989
- Hitachi, Ltd.
- Takeshi Wada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rotor shaft and manufacturing method thereof
- Patent number 4,497,670
- Issue date Feb 5, 1985
- Hitachi, Ltd.
- Masao Siga
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of treating a workpiece with electron beams and apparatus th...
- Patent number 4,327,273
- Issue date Apr 27, 1982
- Hitachi, Ltd.
- Hisanao Kita
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electron beam welding machine
- Patent number 4,317,022
- Issue date Feb 23, 1982
- Hitachi, Ltd.
- Hisanao Kita
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electron beam welding method and apparatus therefor
- Patent number 4,271,348
- Issue date Jun 2, 1981
- Hitachi, Ltd.
- Takamitsu Nakazaki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR