Kazutoshi Hirohashi

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Rotary joint
- Patent number 7,526,155
- Issue date Apr 28, 2009
- Victor Company of Japan, Limited
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source device
- Patent number 6,867,929
- Issue date Mar 15, 2005
- Universidad Politecnica de Madrid
- Francisco-José López-Hernández
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical wireless communication system
- Patent number 5,959,754
- Issue date Sep 28, 1999
- Victor Company of Japan, Ltd.
- Yoshitaka Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bi-directional optical wireless communication apparatus and method...
- Patent number 5,926,302
- Issue date Jul 20, 1999
- Victor Company of Japan, Ltd.
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wireless data transmission system and optical wireless data...
- Patent number 5,600,471
- Issue date Feb 4, 1997
- Victor Company of Japan, Ltd.
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical radio transmission system and a method for adjusting optica...
- Patent number 5,532,858
- Issue date Jul 2, 1996
- Nit Data Communications Victor Company of Japan
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical radio repeater with signal quality detection
- Patent number 5,349,463
- Issue date Sep 20, 1994
- Victor Company of Japan
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Repeater system
- Patent number 5,289,306
- Issue date Feb 22, 1994
- Victor Company of Japan
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio magnetic recording and/or reproducing apparatus utilizing fre...
- Patent number 4,698,693
- Issue date Oct 6, 1987
- Victor Company of Japan, Ltd.
- Yukinobu Ishigaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Quarternary differential PSK demodulator
- Patent number 4,614,910
- Issue date Sep 30, 1986
- Victor Company of Japan, Ltd.
- Yukinobu Ishigaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise reduction by linear interpolation using a dual function ampli...
- Patent number 4,577,161
- Issue date Mar 18, 1986
- Victor Company of Japan, Ltd.
- Kazutoshi Hirohashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise reduction for stereophonic FM signals by high-speed sampling...
- Patent number 4,574,390
- Issue date Mar 4, 1986
- Victor Company of Japan, Limited
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise reduction by linear interpolation using a dual function ampli...
- Patent number 4,539,527
- Issue date Sep 3, 1985
- Victor Company of Japan, Ltd.
- Yukinobu Ishigaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Impulse noise reduction by linear interpolation having a deemphasis...
- Patent number 4,532,475
- Issue date Jul 30, 1985
- Victor Company of Japan, Limited
- Yukinobu Ishigaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Impulse noise reduction by linear interpolation having immunity to...
- Patent number 4,531,095
- Issue date Jul 23, 1985
- Victor Company of Japan, Limited
- Yukinobu Ishigaki
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Rotary joint
- Publication number 20080069495
- Publication date Mar 20, 2008
- VICTOR COMPANY OF JAPAN, LIMITED
- Kazutoshi Hirohashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light source device
- Publication number 20050213180
- Publication date Sep 29, 2005
- Francisco-Jose Lopez-Hernandez
- G02 - OPTICS
Information Patent Application
Light source device
- Publication number 20030026002
- Publication date Feb 6, 2003
- Francisco-Jose Lopez-Hernandez
- G02 - OPTICS

Kazutoshi Hirohashi

Person

Patents Grantslast 30 patents

Rotary joint

Light source device

Optical wireless communication system

Bi-directional optical wireless communication apparatus and method...

Optical wireless data transmission system and optical wireless data...

Optical radio transmission system and a method for adjusting optica...

Optical radio repeater with signal quality detection

Repeater system

Audio magnetic recording and/or reproducing apparatus utilizing fre...

Quarternary differential PSK demodulator

Noise reduction by linear interpolation using a dual function ampli...

Noise reduction for stereophonic FM signals by high-speed sampling...

Noise reduction by linear interpolation using a dual function ampli...

Impulse noise reduction by linear interpolation having a deemphasis...

Impulse noise reduction by linear interpolation having immunity to...

Patents Applicationslast 30 patents

Rotary joint

Light source device

Light source device