Keita YOSHIKAWA

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power supply device, image forming apparatus, and non-transitory re...
- Patent number 12,050,418
- Issue date Jul 30, 2024
- Ricoh Company, Ltd.
- Keita Yoshikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Substrate, power supply device, and substrate insulation method
- Patent number 11,406,009
- Issue date Aug 2, 2022
- Ricoh Company, Ltd.
- Yukihiro Mitani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Substrate, power supply device, and substrate insulation method
- Patent number 10,887,981
- Issue date Jan 5, 2021
- Ricoh Company, Ltd.
- Yukihiro Mitani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power supply device, image forming apparatus, and output control me...
- Patent number 10,423,114
- Issue date Sep 24, 2019
- Ricoh Company, Ltd.
- Keita Yoshikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling adjustment of image parameters...
- Patent number 9,106,861
- Issue date Aug 11, 2015
- Ricoh Company, Ltd.
- Tatsuya Miyadera
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power supply, image forming device, and power supply method
- Patent number 8,983,330
- Issue date Mar 17, 2015
- Ricoh Company, Ltd.
- Akinobu Nakamura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER SUPPLY DEVICE, IMAGE FORMING APPARATUS, AND NON-TRANSITORY RE...
- Publication number 20230305450
- Publication date Sep 28, 2023
- Keita YOSHIKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SUBSTRATE, POWER SUPPLY DEVICE, AND SUBSTRATE INSULATION METHOD
- Publication number 20210076487
- Publication date Mar 11, 2021
- RICOH COMPANY, LTD.
- Yukihiro Mitani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SUBSTRATE, POWER SUPPLY DEVICE, AND SUBSTRATE INSULATION METHOD
- Publication number 20190166710
- Publication date May 30, 2019
- RICOH COMPANY, LTD.
- Yukihiro Mitani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POWER SUPPLY DEVICE, IMAGE FORMING APPARATUS, AND OUTPUT CONTROL ME...
- Publication number 20170299999
- Publication date Oct 19, 2017
- Keita YOSHIKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
IMAGE FORMING CONTROL DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FO...
- Publication number 20140204429
- Publication date Jul 24, 2014
- RICOH COMPANY, LTD.
- Tatsuya MIYADERA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POWER SUPPLY, IMAGE FORMING DEVICE, AND POWER SUPPLY METHOD
- Publication number 20130223867
- Publication date Aug 29, 2013
- Akinobu NAKAMURA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Keita YOSHIKAWA

Person

Patents Grantslast 30 patents

Power supply device, image forming apparatus, and non-transitory re...

Substrate, power supply device, and substrate insulation method

Substrate, power supply device, and substrate insulation method

Power supply device, image forming apparatus, and output control me...

Method and apparatus for controlling adjustment of image parameters...

Power supply, image forming device, and power supply method

Patents Applicationslast 30 patents

POWER SUPPLY DEVICE, IMAGE FORMING APPARATUS, AND NON-TRANSITORY RE...

SUBSTRATE, POWER SUPPLY DEVICE, AND SUBSTRATE INSULATION METHOD

SUBSTRATE, POWER SUPPLY DEVICE, AND SUBSTRATE INSULATION METHOD

POWER SUPPLY DEVICE, IMAGE FORMING APPARATUS, AND OUTPUT CONTROL ME...

IMAGE FORMING CONTROL DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FO...

POWER SUPPLY, IMAGE FORMING DEVICE, AND POWER SUPPLY METHOD