Hiroshi Iizuka

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetically operated fixed displacement pump
- Patent number 5,330,330
- Issue date Jul 19, 1994
- Iwaki Co., Ltd.
- Fukuji Kuwabara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Digital level display device
- Patent number 5,034,680
- Issue date Jul 23, 1991
- Pioneer Electronic Corporation
- Shizuo Kakiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital level indicating device
- Patent number 4,931,724
- Issue date Jun 5, 1990
- Pioneer Electronic Corporation
- Shizuo Kakiuchi
- G01 - MEASURING TESTING
Information Patent Grant
Digital level indicating device
- Patent number 4,870,349
- Issue date Sep 26, 1989
- Pioneer Electronic Corporation
- Shizuo Kakiuchi
- G01 - MEASURING TESTING
Information Patent Grant
Logarithmic digital level display device
- Patent number 4,855,741
- Issue date Aug 8, 1989
- Pioneer Electronic Corporation
- Hiroshi Iizuka
- G06 - COMPUTING CALCULATING COUNTING