Takayuki Sugaiwa

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for forming a secondary image on a photographic printed p...
- Patent number 5,252,989
- Issue date Oct 12, 1993
- Konica Corporation
- Sota Kawakami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photoreceptor for electrography with an ammonium salt
- Patent number 5,028,506
- Issue date Jul 2, 1991
- Konica Corporation
- Hiroshi Yamazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoreceptor for electrophotography having a hydroxystyrene subbin...
- Patent number 4,842,971
- Issue date Jun 27, 1989
- Konishiroku Photo Industry Co., Ltd.
- Takayuki Sugaiwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY