Masaichi Nagai

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Manufacturing method of CMOS thin film semiconductor device and CMO...
- Patent number 6,127,210
- Issue date Oct 3, 2000
- Hitachi, Ltd.
- Akio Mimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical recording media and information recording and reproducing u...
- Patent number RE36624
- Issue date Mar 21, 2000
- Hitachi, Ltd.
- Yoshihito Maeda
- 430 - Radiation imagery chemistry: process, composition, or product thereof
Information Patent Grant
ROM type optical recording medium with a high reflectivity and an o...
- Patent number 5,583,840
- Issue date Dec 10, 1996
- Hitachi, Ltd.
- Hiroyuki Minemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical disk apparatus
- Patent number 5,572,502
- Issue date Nov 5, 1996
- Hitachi, Ltd.
- Atsuko Naruse
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording media and information recording and reproducing u...
- Patent number 5,484,686
- Issue date Jan 16, 1996
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk memory and information processing apparatus
- Patent number 5,475,656
- Issue date Dec 12, 1995
- Hitachi, Ltd.
- Yoshio Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Methods of varying optical properties, optical devices, information...
- Patent number 5,420,845
- Issue date May 30, 1995
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical memory and information processing apparatus
- Patent number 5,371,730
- Issue date Dec 6, 1994
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information processing apparatus and optical head incorporated therein
- Patent number 5,317,556
- Issue date May 31, 1994
- Hitachi, Ltd.
- Nobuyoshi Tsuboi
- G11 - INFORMATION STORAGE
Information Patent Grant
Information processor and disk memory used in the same
- Patent number 5,274,612
- Issue date Dec 28, 1993
- Hitachi, Ltd.
- Yoshio Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 5,187,052
- Issue date Feb 16, 1993
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic separator matrix of cut pieces of an elongated crystalline...
- Patent number 4,668,591
- Issue date May 26, 1987
- Hitachi, Ltd.
- Tetsuroh Minemura
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Information recording medium
- Patent number 4,651,172
- Issue date Mar 17, 1987
- Hitachi, Ltd.
- Ryuji Watanabe
- G11 - INFORMATION STORAGE

Masaichi Nagai

Person

Patents Grantslast 30 patents

Manufacturing method of CMOS thin film semiconductor device and CMO...

Optical recording media and information recording and reproducing u...

ROM type optical recording medium with a high reflectivity and an o...

Optical disk apparatus

Optical recording media and information recording and reproducing u...

Optical disk memory and information processing apparatus

Methods of varying optical properties, optical devices, information...

Optical memory and information processing apparatus

Information processing apparatus and optical head incorporated therein

Information processor and disk memory used in the same

Optical recording medium

Magnetic separator matrix of cut pieces of an elongated crystalline...

Information recording medium