Kenji Sumida

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Debt reduction method and device thereof
- Patent number 7,702,573
- Issue date Apr 20, 2010
- Washi Kosan Co., Ltd.
- Minoru Ono
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Kit providing independent right and left eyeglass lenses with side...
- Patent number 6,183,081
- Issue date Feb 6, 2001
- Washi Kosan Co., Ltd.
- Kotaro Ono
- G02 - OPTICS
Information Patent Grant
Convex-microgranular surface structure
- Patent number 6,075,652
- Issue date Jun 13, 2000
- Washi Kosan Co., Ltd.
- Kotaro Ono
- G02 - OPTICS
Information Patent Grant
Transparent article and process for producing the same
- Patent number 5,709,922
- Issue date Jan 20, 1998
- Hitachi, Ltd.
- Masahiko Ono
- G02 - OPTICS
Information Patent Grant
Patterning method and device in warp knitting machine
- Patent number 5,675,993
- Issue date Oct 14, 1997
- Nippon Mayer Co. Ltd.
- Kotaro Ono
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS

Patents Applicationslast 30 patents

Information Patent Application
Debt reduction method and device thereof
- Publication number 20060229955
- Publication date Oct 12, 2006
- Washi Kosan Co., Ltd.
- Minoru Ono
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Framed lens, pattern paper for assembling the same, right and left...
- Publication number 20010001246
- Publication date May 17, 2001
- Washi Kosan Co., Ltd.
- Kotaro Ono
- G02 - OPTICS