Toshihiko Tutumi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Single body and composite sliding members
- Patent number 5,039,575
- Issue date Aug 13, 1991
- Daido Metal Company Ltd.
- Sanae Mori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for the production and use of ultrapure water and apparatus...
- Patent number 4,784,772
- Issue date Nov 15, 1988
- Mitsui Toatsu Chemicals, Incorporated
- Yoshihisa Gotoh
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE