Ryuichi Kawa

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Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Character pattern line thickness regularizing device
- Patent number 4,010,446
- Issue date Mar 1, 1977
- Kabushiki Kaisha Ricoh
- Ryuichi Kawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Character pattern normalization method and apparatus for optical ch...
- Patent number 3,967,243
- Issue date Jun 29, 1976
- Kabushiki Kaisha Ricoh
- Ryuichi Kawa
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING