Hiroyuki Tsukui

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive recording material and diphenylsulfone
- Patent number 10,899,153
- Issue date Jan 26, 2021
- Nippon Kayaku Kabushiki Kaisha
- Tsunetoshi Egusa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Porphyrazine coloring matter, ink, ink set and colored product
- Patent number 7,585,361
- Issue date Sep 8, 2009
- Nippon Kayaku Kabushiki Kaisha
- Takashi Yoneda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Heat-Sensitive Recording Material And Diphenylsulfone
- Publication number 20180312465
- Publication date Nov 1, 2018
- NIPPON KAYAKU KABUSHIKI KAISHA
- Tsunetoshi Egusa
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Porphyrazine Coloring Matter, Ink, Ink Set and Colored Product
- Publication number 20090151599
- Publication date Jun 18, 2009
- Takafumi Fujii
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...