Hiroaki Usui

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Kadoma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing modified wood
- Patent number 5,342,651
- Issue date Aug 30, 1994
- Matsushita Electric Works, Ltd.
- Hiroaki Usui
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Modifying a wood material utilizing formaldehyde polymer and sulfur...
- Patent number 5,318,802
- Issue date Jun 7, 1994
- Matsushita Electric Works, Ltd.
- Hiroyuki Ishikawa
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Timber surface improving treatment process
- Patent number 5,143,748
- Issue date Sep 1, 1992
- Matsushita Electric Works, Ltd.
- Hiroyuki Ishikawa
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Method of manufacturing modified wood material
- Patent number 4,857,365
- Issue date Aug 15, 1989
- Matsushita Electric Works, Ltd.
- Shozo Hirao
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...