Hiromasa Matsuoka

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Amagasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Resin-sealed semiconductor device
- Patent number 5,093,712
- Issue date Mar 3, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Yoshihiro Matsunaga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of and apparatus for controlling pH and electrical conductiv...
- Patent number 4,917,806
- Issue date Apr 17, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Yoshihiro Matsunaga
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Water producing apparatus
- Patent number 4,344,778
- Issue date Aug 17, 1982
- Mitsubishi Denki Kabushiki Kaisha
- Hiromasa Matsuoka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Water producing air conditioning system
- Patent number 4,313,312
- Issue date Feb 2, 1982
- Mitsubishi Denki Kabushiki Kaisha
- Toshio Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Water producing apparatus
- Patent number 4,304,577
- Issue date Dec 8, 1981
- Mitsubishi Denki Kabushiki Kaisha
- Toshio Ito
- E03 - WATER SUPPLY SEWERAGE