Hiroshi Kawahara

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Tondabayashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Resin composition, water-resistant/moisture-proof paper, containing...
- Patent number 6,852,198
- Issue date Feb 8, 2005
- Goyo Paper Working Co., Ltd.
- Yukinobu Yamazaki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Waterproof recording material having ground patterns and its manufa...
- Patent number 5,188,395
- Issue date Feb 23, 1993
- Goyo Paper Working Co., Ltd.
- Hiroshi Kawahara
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Laminated material for hot and cold cups and its manufacturing method
- Patent number 4,937,110
- Issue date Jun 26, 1990
- Goyo Paper Working Co. Ltd.
- Shuzo Ohara
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Developer sheet
- Patent number 4,855,280
- Issue date Aug 8, 1989
- Goyo Paper Working Co. Ltd.
- Shuzo Ohara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS