Kazuyoshi Kikkawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Carboxylate and heat-sensitive recording material using same
- Patent number 5,691,272
- Issue date Nov 25, 1997
- Mitsui Toatsu Chemicals, Inc.
- Mansuke Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Carboxylate and heat-sensitive recording material using same
- Patent number 5,559,247
- Issue date Sep 24, 1996
- Mitsui Toatsu Chemicals, Inc.
- Mansuke Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heat-sensitive recording materials and phenol compounds
- Patent number 5,391,806
- Issue date Feb 21, 1995
- Mitsui Toatsu Chemicals, Incorporated
- Atsuo Otsuji
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Salicylic acid derivatives, the process for preparing the same and...
- Patent number 5,306,688
- Issue date Apr 26, 1994
- Mitsui Toatsu Chemicals, Inc.
- Yoshimitsu Tanabe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystals of fluoran compound, crystalline solvates thereof, process...
- Patent number 5,302,571
- Issue date Apr 12, 1994
- Mitsui Toatsu Chemicals, Inc.
- Atsuo Otsuji
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording material comprising crystal of fluoran compound
- Patent number 5,300,473
- Issue date Apr 5, 1994
- Mitsui Toatsu Chemicals, Inc.
- Masakatsu Nakatsuka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process for preparation of a recording material comprising a novel...
- Patent number 5,300,661
- Issue date Apr 5, 1994
- Mitsui Toatsu Chemicals, Inc.
- Masakatsu Nakatsuka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Recording material comprising novel crystalline fluoran and process...
- Patent number 5,283,222
- Issue date Feb 1, 1994
- Mitsui Toatsu Chemicals, Inc.
- Masakatsu Nakatsuka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermochromic materials
- Patent number 5,281,570
- Issue date Jan 25, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Kiyoharu Hasegawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heat-sensitive recording materials and phenol compounds
- Patent number 5,270,281
- Issue date Dec 14, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Atsuo Otsuji
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystals of fluoran compound, crystalline solvates thereof and proc...
- Patent number 5,245,049
- Issue date Sep 14, 1993
- Mitsui Toatsu Chemicals, Inc.
- Atsuo Otsuji
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Crystal of fluoran compound and preparation process of the crystal
- Patent number 5,210,221
- Issue date May 11, 1993
- Mitsui Toatsu Chemicals, Inc.
- Masakatsu Nakatsuka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Crystal of fluoran compound
- Patent number 5,185,453
- Issue date Feb 9, 1993
- Mitsui Toatsu Chemicals, Inc.
- Masakatsu Nakatsuka
- C07 - ORGANIC CHEMISTRY

Kazuyoshi Kikkawa

Person

Patents Grantslast 30 patents

Carboxylate and heat-sensitive recording material using same

Carboxylate and heat-sensitive recording material using same

Heat-sensitive recording materials and phenol compounds

Salicylic acid derivatives, the process for preparing the same and...

Crystals of fluoran compound, crystalline solvates thereof, process...

Recording material comprising crystal of fluoran compound

Process for preparation of a recording material comprising a novel...

Recording material comprising novel crystalline fluoran and process...

Thermochromic materials

Heat-sensitive recording materials and phenol compounds

Crystals of fluoran compound, crystalline solvates thereof and proc...

Crystal of fluoran compound and preparation process of the crystal

Crystal of fluoran compound