Kenji Hiruma

Person

Kokubunji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor light emitting device
- Patent number 6,356,572
- Issue date Mar 12, 2002
- Hitachi, Ltd.
- Toshiaki Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device having first and second stacked semiconductor...
- Patent number 5,701,019
- Issue date Dec 23, 1997
- Hitachi, Ltd.
- Hidetoshi Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device having a heterojunction and a two dimensional...
- Patent number 5,381,027
- Issue date Jan 10, 1995
- Hitachi, Ltd.
- Toshiyuki Usagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device using whiskers
- Patent number 5,362,972
- Issue date Nov 8, 1994
- Hitachi, Ltd.
- Masamitsu Yazawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Semiconductor device having reduced contact resistance between a ch...
- Patent number 5,351,128
- Issue date Sep 27, 1994
- Hitachi, Ltd.
- Shigeo Goto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical device with nanowhiskers
- Patent number 5,332,910
- Issue date Jul 26, 1994
- Hitachi, Ltd.
- Keiichi Haraguchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device having a two-dimensional electron gas as an ac...
- Patent number 5,258,631
- Issue date Nov 2, 1993
- Hitachi, Ltd.
- Toshiyuki Usagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Solid film growth apparatus
- Patent number 5,025,751
- Issue date Jun 25, 1991
- Hitachi, Ltd.
- Shinichiro Takatani
- C30 - CRYSTAL GROWTH
Information Patent Grant
Semiconductor optical device
- Patent number 4,933,728
- Issue date Jun 12, 1990
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical modulator
- Patent number 4,847,573
- Issue date Jul 11, 1989
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device having strained superlattice buffer layers wit...
- Patent number 4,835,583
- Issue date May 30, 1989
- Hitachi, Ltd.
- Makoto Morioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Waveguide optical switches
- Patent number 4,784,451
- Issue date Nov 15, 1988
- Hitachi, Ltd.
- Hitoshi Nakamura
- G02 - OPTICS
Information Patent Grant
Distributed-feedback semiconductor laser device
- Patent number 4,775,980
- Issue date Oct 4, 1988
- Hitachi, Ltd.
- Naoki Chinone
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of growing heteroepitaxial InP on Si using Sn substrate impl...
- Patent number 4,766,092
- Issue date Aug 23, 1988
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical waveguide having a silicon oxi-nitride layer
- Patent number 4,737,015
- Issue date Apr 12, 1988
- Hitachi, Ltd. Hitachi Cabel
- Koji Ishida
- G02 - OPTICS
Information Patent Grant
Distributed feedback semiconductor laser
- Patent number 4,720,836
- Issue date Jan 19, 1988
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE
- Publication number 20130244146
- Publication date Sep 19, 2013
- Hitachi, Ltd
- Kazuyuki Kakuta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kenji Hiruma

Person

Patents Grantslast 30 patents

Semiconductor light emitting device

Semiconductor device having first and second stacked semiconductor...

Semiconductor device having a heterojunction and a two dimensional...

Semiconductor device using whiskers

Semiconductor device having reduced contact resistance between a ch...

Semiconductor optical device with nanowhiskers

Semiconductor device having a two-dimensional electron gas as an ac...

Solid film growth apparatus

Semiconductor optical device

Optical modulator

Semiconductor device having strained superlattice buffer layers wit...

Waveguide optical switches

Distributed-feedback semiconductor laser device

Method of growing heteroepitaxial InP on Si using Sn substrate impl...

Optical waveguide having a silicon oxi-nitride layer

Distributed feedback semiconductor laser

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE