Tomoko Kamashita

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Ohmuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Color-developing agents and color-developing sheets
- Patent number 5,647,896
- Issue date Jul 15, 1997
- Mitsui Toatsu Chemicals, Inc.
- Takeshi Nishimura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for extracting an amino acid ester from a hydrous solution o...
- Patent number 5,374,765
- Issue date Dec 20, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Tomoko Kamashita
- C07 - ORGANIC CHEMISTRY