Risato Ohhira

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High frequency wiring board comprised of interconnected first and s...
- Patent number 9,019,035
- Issue date Apr 28, 2015
- NEC Corporation
- Risato Ohhira
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electromagnetic field measuring apparatus, electromagnetic field me...
- Patent number 8,941,402
- Issue date Jan 27, 2015
- NEC Corporation
- Mizuki Iwanami
- G01 - MEASURING TESTING
Information Patent Grant
Waveguide, waveguide connection structure and waveguide connection...
- Patent number 8,680,954
- Issue date Mar 25, 2014
- NEC Corporation
- Yoshiaki Wakabayashi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Electromagnetic field measurement apparatus
- Patent number 8,654,331
- Issue date Feb 18, 2014
- NEC Corporation
- Mizuki Iwanami
- G01 - MEASURING TESTING
Information Patent Grant
High frequency substrate including a signal line breaking portion c...
- Patent number 8,604,891
- Issue date Dec 10, 2013
- NEC Corporation
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-frequency transmission line having ground surface patterns wit...
- Patent number 8,154,364
- Issue date Apr 10, 2012
- NEC Corporation
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmitter with tap type optical filters
- Patent number 7,302,191
- Issue date Nov 27, 2007
- NEC Corporation
- Risato Ohhira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulation system applying a highly stable bias voltage to...
- Patent number 7,046,414
- Issue date May 16, 2006
- NEC Corporation
- Risato Ohhira
- G02 - OPTICS
Information Patent Grant
Modulator and method of modulating optical carrier with clock signa...
- Patent number 6,882,802
- Issue date Apr 19, 2005
- NEC Corporation
- Risato Ohhira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitter, optical receiver, optical transmission system,...
- Patent number 6,728,490
- Issue date Apr 27, 2004
- NEC Corporation
- Risato Ohhira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC POWER SYSTEM TREE DISPLAY SYSTEM AND ELECTRIC POWER SYSTEM...
- Publication number 20150005972
- Publication date Jan 1, 2015
- NEC Corporation
- Hisashi Ishida
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HIGH-FREQUENCY TRANSMISSION LINE AND CIRCUIT SUBSTRATE
- Publication number 20120326812
- Publication date Dec 27, 2012
- NEC Corporation
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTROMAGNETIC FIELD MEASURING APPARATUS, ELECTROMAGNETIC FIELD ME...
- Publication number 20120098560
- Publication date Apr 26, 2012
- Mizuki Iwanami
- G01 - MEASURING TESTING
Information Patent Application
SUBSTRATE OF CIRCUIT MODULE AND MANUFACTURING METHOD THEREFOR
- Publication number 20110226518
- Publication date Sep 22, 2011
- Risato Ohhira
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
WAVEGUIDE, WAVEGUIDE CONNECTION STRUCTURE AND WAVEGUIDE CONNECTION...
- Publication number 20110156844
- Publication date Jun 30, 2011
- Yoshiaki Wakabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-FREQUENCY WIRING BOARD AND HIGH-FREQUENCY MODULE THAT USES THE...
- Publication number 20110128100
- Publication date Jun 2, 2011
- Risato Ohhira
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH-FREQUENCY SUBSTRATE AND HIGH-FREQUENCY MODULE
- Publication number 20110032056
- Publication date Feb 10, 2011
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTROMAGNETIC FIELD MEASUREMENT DEVICE
- Publication number 20110001971
- Publication date Jan 6, 2011
- Mizuki Iwanami
- G01 - MEASURING TESTING
Information Patent Application
High-Frequency Wiring Board and High-Frequency Module That Uses the...
- Publication number 20100254094
- Publication date Oct 7, 2010
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-FREQUENCY TRANSMISSION LINE
- Publication number 20090267713
- Publication date Oct 29, 2009
- Risato Ohhira
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical transmitter with tap type optical filters
- Publication number 20040101318
- Publication date May 27, 2004
- NEC Corporation
- Risato Ohhira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical modulation system applying a highly stable bias voltage to...
- Publication number 20030123121
- Publication date Jul 3, 2003
- NEC Corporation
- Risato Ohhira
- G02 - OPTICS

Risato Ohhira

Person

Patents Grantslast 30 patents

High frequency wiring board comprised of interconnected first and s...

Electromagnetic field measuring apparatus, electromagnetic field me...

Waveguide, waveguide connection structure and waveguide connection...

Electromagnetic field measurement apparatus

High frequency substrate including a signal line breaking portion c...

High-frequency transmission line having ground surface patterns wit...

Optical transmitter with tap type optical filters

Optical modulation system applying a highly stable bias voltage to...

Modulator and method of modulating optical carrier with clock signa...

Optical transmitter, optical receiver, optical transmission system,...

Patents Applicationslast 30 patents

ELECTRIC POWER SYSTEM TREE DISPLAY SYSTEM AND ELECTRIC POWER SYSTEM...

HIGH-FREQUENCY TRANSMISSION LINE AND CIRCUIT SUBSTRATE

ELECTROMAGNETIC FIELD MEASURING APPARATUS, ELECTROMAGNETIC FIELD ME...

SUBSTRATE OF CIRCUIT MODULE AND MANUFACTURING METHOD THEREFOR

WAVEGUIDE, WAVEGUIDE CONNECTION STRUCTURE AND WAVEGUIDE CONNECTION...

HIGH-FREQUENCY WIRING BOARD AND HIGH-FREQUENCY MODULE THAT USES THE...

HIGH-FREQUENCY SUBSTRATE AND HIGH-FREQUENCY MODULE

ELECTROMAGNETIC FIELD MEASUREMENT DEVICE

High-Frequency Wiring Board and High-Frequency Module That Uses the...

HIGH-FREQUENCY TRANSMISSION LINE

Optical transmitter with tap type optical filters

Optical modulation system applying a highly stable bias voltage to...