Tsunemi Ohiwa

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Thin-film electroluminescent element
- Patent number 5,635,307
- Issue date Jun 3, 1997
- Hitachi Maxell, Ltd.
- Youji Takeuchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink ribbon
- Patent number 5,569,531
- Issue date Oct 29, 1996
- Hitachi Maxell, Ltd.
- Tsunemi Ohiwa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink composition
- Patent number 5,478,381
- Issue date Dec 26, 1995
- Hitachi Maxell, Ltd.
- Tsunemi Ohiwa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Latent image forming member and method of manufacturing, latent ima...
- Patent number 5,463,212
- Issue date Oct 31, 1995
- Hitachi Maxell, Ltd.
- Toshio Oshima
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Infrared-absorbing mark printed matter
- Patent number 5,366,252
- Issue date Nov 22, 1994
- Hitachi Maxell, Ltd.
- Masato Nishida
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Detection mark and method and apparatus for detecting mark
- Patent number 5,210,411
- Issue date May 11, 1993
- Hitachi Maxell, Ltd.
- Toshio Oshima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of charging secondary batteries
- Patent number 5,140,252
- Issue date Aug 18, 1992
- Hitachi Maxell, Ltd.
- Masanobu Kizu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dual insulation oxynitride blocking thin film electroluminescence d...
- Patent number 4,947,081
- Issue date Aug 7, 1990
- Hitachi Maxell, Ltd.
- Tsunemi Ohiwa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrochromic display device
- Patent number 4,793,695
- Issue date Dec 27, 1988
- Hitachi Maxell, Ltd.
- Shuichi Wada
- G02 - OPTICS
Information Patent Grant
Electrochromic display device
- Patent number 4,773,740
- Issue date Sep 27, 1988
- Hitachi Maxell, Ltd.
- Akira Kawakami
- G02 - OPTICS
Information Patent Grant
Magnetic recording medium and production thereof
- Patent number 4,737,415
- Issue date Apr 12, 1988
- Hitachi Maxell, Ltd.
- Minoru Ichijo
- G11 - INFORMATION STORAGE

Tsunemi Ohiwa

Person

Patents Grantslast 30 patents

Thin-film electroluminescent element

Ink ribbon

Ink composition

Latent image forming member and method of manufacturing, latent ima...

Infrared-absorbing mark printed matter

Detection mark and method and apparatus for detecting mark

Method of charging secondary batteries

Dual insulation oxynitride blocking thin film electroluminescence d...

Electrochromic display device

Electrochromic display device

Magnetic recording medium and production thereof