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Ayako Shirai
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Yokohama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Thermosensitive recording materials
Patent number
7,312,177
Issue date
Dec 25, 2007
Oji Paper Co., Ltd.
Ayako Shirai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thermosensitive recording material and novel color developer compounds
Patent number
6,858,565
Issue date
Feb 22, 2005
Oji Paper Co., Ltd.
Hirotake Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Bis (arylsulfonylaminocarbonylaminobenzoate) compounds and thermose...
Patent number
6,677,472
Issue date
Jan 13, 2004
Oji Paper Co., Ltd.
Ayako Shirai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Bis (arylsulfonylaminocarbonylaminobenzoate) compounds and thermose...
Patent number
6,486,094
Issue date
Nov 26, 2002
Oji Paper Co., Ltd.
Ayako Shirai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermosensitive recording material
Patent number
5,612,280
Issue date
Mar 18, 1997
New Oji Paper Co., Ltd.
Yoshiyuki Takahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermosensitive recording material
Patent number
5,283,227
Issue date
Feb 1, 1994
Oji Paper Co., Ltd.
Ayako Shirai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
Thermosensitive recording materials
Publication number
20050054528
Publication date
Mar 10, 2005
OJI PAPER CO., LTD.
Ayako Shirai
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Thermosensitive recording material and novel color developer compounds
Publication number
20030040434
Publication date
Feb 27, 2003
Hirotake Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Bis (arylsulfonylaminocarbonylaminobenzoate) compounds and thermose...
Publication number
20020065196
Publication date
May 30, 2002
OJI PAPER CO., LTD.
Ayako Shirai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS