Kenji Yokoyama

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photoreceptor containing carrier transport with polysilane and phen...
- Patent number 5,262,260
- Issue date Nov 16, 1993
- Toagosei Chemical Industry Co., Ltd.
- Masaaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for producing electrophotographic photoreceptor and apparatu...
- Patent number 5,130,214
- Issue date Jul 14, 1992
- Toagosei Chemical Industry Co., Ltd.
- Masaaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY