Tsutomu Imai

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Izumi-ohtsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Curing composition
- Patent number 5,684,079
- Issue date Nov 4, 1997
- Dainippon Ink & Chemicals Inc.
- Masanobu Yumoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Fire-retardant for woody materials
- Patent number 4,839,099
- Issue date Jun 13, 1989
- Dainippon Ink and Chemicals, Inc.
- Kiyoshi Umehara
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...