Masato Hirai

Person

Hadano, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Frequency-hopped wireless communication system and mobile wireless...
- Patent number 6,014,406
- Issue date Jan 11, 2000
- Hitachi, Ltd.
- Masaaki Shida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of compensating a phase of a system clock in an information...
- Patent number 5,455,840
- Issue date Oct 3, 1995
- Hitachi, Ltd.
- Toshihiko Nakauchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for controlling phase of a system clock signal...
- Patent number 5,373,254
- Issue date Dec 13, 1994
- Hitachi, Ltd.
- Toshihiko Nakauchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Repeater and PLL circuit
- Patent number 5,052,022
- Issue date Sep 24, 1991
- Hitachi, Ltd.
- Shigeo Nishita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Regenerative repeater
- Patent number 5,046,185
- Issue date Sep 3, 1991
- Hitachi, Ltd.
- Masato Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring network configuration
- Patent number 4,937,823
- Issue date Jun 26, 1990
- Hitachi, Ltd.
- Yoshinori Bekki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiplexer with automatic call function
- Patent number 4,899,337
- Issue date Feb 6, 1990
- Hitachi, Ltd.
- Masato Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Trunk coupling unit
- Patent number 4,697,047
- Issue date Sep 29, 1987
- Hitachi, Ltd.
- Masato Hirai
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Masato Hirai

Person

Patents Grantslast 30 patents

Frequency-hopped wireless communication system and mobile wireless...

Method of compensating a phase of a system clock in an information...

Method and apparatus for controlling phase of a system clock signal...

Repeater and PLL circuit

Regenerative repeater

Ring network configuration

Time division multiplexer with automatic call function

Trunk coupling unit