Tomio Arai

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling toner density of copying device
- Patent number 4,833,506
- Issue date May 23, 1989
- Konishiroku Photo Industry Co., Ltd.
- Hiroshi Kuru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner density control apparatus
- Patent number 4,801,980
- Issue date Jan 31, 1989
- Konica Corporation
- Tomio Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning apparatus for an electrostatic recording machine
- Patent number 4,361,397
- Issue date Nov 30, 1982
- Konishiroku Photo Industry Co., Ltd.
- Hiroshi Katakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY