Toshikazu Narahara

Person

Ibaragi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal polyimide alignment free of scattering domains
- Patent number RE34885
- Issue date Mar 28, 1995
- Hitachi, Ltd.
- Hisao Yokokura
- 252 - Compositions
Information Patent Grant
Magnetic recording medium having a lubricating layer comprising a b...
- Patent number 5,223,342
- Issue date Jun 29, 1993
- Hitachi, Ltd.
- Mitsuyoshi Shoji
- G11 - INFORMATION STORAGE
Information Patent Grant
Flame-retardant resin composition containing a bromostyrene prepolymer
- Patent number 5,223,594
- Issue date Jun 29, 1993
- Hitachi, Ltd.
- Akira Nagai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting resin composition, and prepreg and laminated sheet wh...
- Patent number 5,212,244
- Issue date May 18, 1993
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer having dihydropyridine rings or dihydrotriazine rings, proc...
- Patent number 5,166,283
- Issue date Nov 24, 1992
- Hitachi Ltd.
- Akio Nishikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic recording medium based on epoxy resins modified by isocyan...
- Patent number 5,128,435
- Issue date Jul 7, 1992
- Hitachi, Ltd.
- Mitsuyoshi Shoji
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Prepreg from poly(p-hydroxystyrene), epoxy-modified polybutadiene a...
- Patent number 5,080,965
- Issue date Jan 14, 1992
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic recording medium with a lubricant layer containing a perfl...
- Patent number 5,071,715
- Issue date Dec 10, 1991
- Hitachi, Ltd.
- Mitsuyoshi Shoji
- G11 - INFORMATION STORAGE
Information Patent Grant
Resin composition for printed circuit board
- Patent number 5,041,478
- Issue date Aug 20, 1991
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing printed circuit board
- Patent number 5,028,513
- Issue date Jul 2, 1991
- Hitachi, Ltd.
- Kanji Murakami
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuit board and process for producing the same
- Patent number 5,021,296
- Issue date Jun 4, 1991
- Hitachi, Ltd.
- Yoshihiro Suzuki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrophotographic toner comprising lactone-modified epoxy resin
- Patent number 4,978,596
- Issue date Dec 18, 1990
- Hitachi, Ltd.
- Ryuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Resin composition for printed circuit board and such board formed b...
- Patent number 4,946,734
- Issue date Aug 7, 1990
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting resin and prepreg and laminate using the same
- Patent number 4,933,228
- Issue date Jun 12, 1990
- Hitachi, Ltd.
- Junichi Katagiri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composition comprising poly(p-hydroxystrene) derivative, epoxy-modi...
- Patent number 4,931,507
- Issue date Jun 5, 1990
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer from nitrile terminated compounds having Schiff bonds and p...
- Patent number 4,900,807
- Issue date Feb 13, 1990
- Hitachi, Ltd.
- Akio Nishikawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermosetting resin and prepreg and laminate using the same
- Patent number 4,886,858
- Issue date Dec 12, 1989
- Hitachi, Ltd.
- Junichi Katagiri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic recording medium
- Patent number 4,828,924
- Issue date May 9, 1989
- Hitachi Maxell, Ltd.
- Mitsutoshi Shoji
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermosetting resin composition and laminate and process for the pr...
- Patent number 4,784,917
- Issue date Nov 15, 1988
- Hitachi, Ltd.
- Keiko Tawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal polyimide alignment free of scattering domains
- Patent number 4,781,439
- Issue date Nov 1, 1988
- Hitachi, Ltd.
- Hisao Yokokura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermo-setting, polymerizable composition and wiring board
- Patent number 4,738,900
- Issue date Apr 19, 1988
- Hitachi, Ltd.
- Masahiro Ono
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermal transfer sheet
- Patent number 4,690,858
- Issue date Sep 1, 1987
- Hitachi, Ltd.
- Hiroyuki Oka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Composite of metal and resin having electrolytically reduced metal...
- Patent number 4,661,417
- Issue date Apr 28, 1987
- Hitachi, Ltd.
- Yoshihiro Suzuki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lubricant for metal forming and process for metal forming
- Patent number 4,612,127
- Issue date Sep 16, 1986
- Hitachi, Ltd.
- Takao Uematsu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Thermosetting resin composition from aromatic cyanamide
- Patent number 4,607,094
- Issue date Aug 19, 1986
- Hitachi, Ltd.
- Katuo Sugawara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin composition and laminate produced therefrom comprising a cycl...
- Patent number 4,587,162
- Issue date May 6, 1986
- Hitachi, Ltd.
- Akira Nagai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting resin composition, process for preparation thereof an...
- Patent number 4,393,177
- Issue date Jul 12, 1983
- Hitachi, Ltd.
- Takeo Ishii
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Odorless or low-odor crosslinkable compound and resin composition c...
- Patent number 4,369,288
- Issue date Jan 18, 1983
- Hitachi Chemical Company, Ltd.
- Tohru Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Precision machinery component
- Patent number 4,366,516
- Issue date Dec 28, 1982
- Hitachi, Ltd.
- Masatsugu Ogata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin molded stators
- Patent number 4,352,897
- Issue date Oct 5, 1982
- Hitachi, Ltd.
- Masatsugu Ogata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Toshikazu Narahara

Person

Patents Grantslast 30 patents

Liquid crystal polyimide alignment free of scattering domains

Magnetic recording medium having a lubricating layer comprising a b...

Flame-retardant resin composition containing a bromostyrene prepolymer

Thermosetting resin composition, and prepreg and laminated sheet wh...

Polymer having dihydropyridine rings or dihydrotriazine rings, proc...

Magnetic recording medium based on epoxy resins modified by isocyan...

Prepreg from poly(p-hydroxystyrene), epoxy-modified polybutadiene a...

Magnetic recording medium with a lubricant layer containing a perfl...

Resin composition for printed circuit board

Process for producing printed circuit board

Circuit board and process for producing the same

Electrophotographic toner comprising lactone-modified epoxy resin

Resin composition for printed circuit board and such board formed b...

Thermosetting resin and prepreg and laminate using the same

Composition comprising poly(p-hydroxystrene) derivative, epoxy-modi...

Polymer from nitrile terminated compounds having Schiff bonds and p...

Thermosetting resin and prepreg and laminate using the same

Magnetic recording medium

Thermosetting resin composition and laminate and process for the pr...

Liquid crystal polyimide alignment free of scattering domains

Thermo-setting, polymerizable composition and wiring board

Thermal transfer sheet

Composite of metal and resin having electrolytically reduced metal...

Lubricant for metal forming and process for metal forming

Thermosetting resin composition from aromatic cyanamide

Resin composition and laminate produced therefrom comprising a cycl...

Thermosetting resin composition, process for preparation thereof an...

Odorless or low-odor crosslinkable compound and resin composition c...

Precision machinery component

Resin molded stators