Tomoyasu Hirasawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Loop heat pipe, cooling device, and electronic device
- Patent number 11,371,783
- Issue date Jun 28, 2022
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Loop heat pipe wick, loop heat pipe, cooling device, and electronic...
- Patent number 11,187,468
- Issue date Nov 30, 2021
- Ricoh Company, Ltd.
- Kiyotada Katoh
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Light irradiation apparatus and information rewritable system
- Patent number 10,071,586
- Issue date Sep 11, 2018
- Ricoh Company, Ltd.
- Masataka Uehira
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,864,334
- Issue date Jan 9, 2018
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device, laser device, and image processing apparatus
- Patent number 9,707,792
- Issue date Jul 18, 2017
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 9,513,598
- Issue date Dec 6, 2016
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,483,018
- Issue date Nov 1, 2016
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,465,358
- Issue date Oct 11, 2016
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,423,730
- Issue date Aug 23, 2016
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device having a turbulence generating unit
- Patent number 9,400,485
- Issue date Jul 26, 2016
- Ricoh Company, Ltd.
- Satoshi Okano
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,372,465
- Issue date Jun 21, 2016
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Air-conditioning unit, image forming apparatus incorporating same,...
- Patent number 9,360,837
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Cooling device and image forming apparatus incorporating same
- Patent number 9,360,838
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Hiroaki Miyagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid cooling device that arranges a coolant flowing direction in...
- Patent number 9,354,601
- Issue date May 31, 2016
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Recording medium conveyor and image forming apparatus incorporating...
- Patent number 9,348,311
- Issue date May 24, 2016
- Ricoh Company, Ltd.
- Takeshi Watanabe
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus
- Patent number 9,335,676
- Issue date May 10, 2016
- Ricoh Company, Ltd.
- Hiroaki Miyagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 9,296,235
- Issue date Mar 29, 2016
- Ricoh Company, Ltd.
- Keisuke Ikeda
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,217,979
- Issue date Dec 22, 2015
- Ricoh Company, Ltd.
- Tomoyasu Hirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,098,024
- Issue date Aug 4, 2015
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 9,063,482
- Issue date Jun 23, 2015
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus incorporating same
- Patent number 9,046,872
- Issue date Jun 2, 2015
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 9,046,858
- Issue date Jun 2, 2015
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 9,044,982
- Issue date Jun 2, 2015
- Ricoh Company, Ltd.
- Keisuke Ikeda
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus
- Patent number 8,977,159
- Issue date Mar 10, 2015
- Ricoh Company, Ltd.
- Kenichi Takehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 8,879,945
- Issue date Nov 4, 2014
- Ricoh Company, Limited
- Hiomitsu Fujiya
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Cooling device and image forming apparatus including the same
- Patent number 8,805,231
- Issue date Aug 12, 2014
- Ricoh Company, Limited
- Shingo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 8,792,800
- Issue date Jul 29, 2014
- Ricoh Company, Ltd.
- Hiromitsu Fujiya
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Fixing liquid, fixing method, fixing unit, image forming method, an...
- Patent number 8,737,899
- Issue date May 27, 2014
- Ricoh Company, Ltd.
- Yasuo Katano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus including same
- Patent number 8,725,026
- Issue date May 13, 2014
- Ricoh Company, Ltd.
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cooling device and image forming apparatus
- Patent number 8,687,999
- Issue date Apr 1, 2014
- Ricoh Company, Limited
- Satoshi Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROJECTION APPARATUS
- Publication number 20230205069
- Publication date Jun 29, 2023
- Richo Company, Ltd.
- Tomoyasu HIRASAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LOOP HEAT PIPE, COOLING SYSTEM, ELECTRONIC EQUIPMENT, AND WICK
- Publication number 20220295670
- Publication date Sep 15, 2022
- Takeshi ENDOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
EVAPORATOR, LOOP HEAT PIPE, AND ELECTRONIC DEVICE
- Publication number 20200386489
- Publication date Dec 10, 2020
- Ricoh Company, Ltd.
- Toshihiko BABA
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
LOOP HEAT PIPE, COOLING DEVICE, AND ELECTRONIC DEVICE
- Publication number 20190390918
- Publication date Dec 26, 2019
- Tomoyasu Hirasawa
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
LIGHT IRRADIATION APPARATUS AND INFORMATION REWRITABLE SYSTEM
- Publication number 20180290476
- Publication date Oct 11, 2018
- Masataka UEHIRA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LOOP HEAT PIPE WICK, LOOP HEAT PIPE, COOLING DEVICE, AND ELECTRONIC...
- Publication number 20180180360
- Publication date Jun 28, 2018
- Kiyotada Katoh
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
LIGHT IRRADIATION APPARATUS AND INFORMATION REWRITABLE SYSTEM
- Publication number 20170001459
- Publication date Jan 5, 2017
- Masataka UEHIRA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20160342136
- Publication date Nov 24, 2016
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE, LASER DEVICE, AND IMAGE PROCESSING APPARATUS
- Publication number 20160211636
- Publication date Jul 21, 2016
- Tomoyasu Hirasawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160195847
- Publication date Jul 7, 2016
- Keisuke IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20160048106
- Publication date Feb 18, 2016
- Tomoyasu Hirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20150277304
- Publication date Oct 1, 2015
- KEISUKE IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20150227111
- Publication date Aug 13, 2015
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150217586
- Publication date Aug 6, 2015
- Keisuke IKEDA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RECORDING MEDIUM CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING...
- Publication number 20150160610
- Publication date Jun 11, 2015
- Takeshi WATANABE
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
LIQUID COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20150071677
- Publication date Mar 12, 2015
- Tomoyasu HIRASAWA
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20150010338
- Publication date Jan 8, 2015
- Hiroaki MIYAGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140334858
- Publication date Nov 13, 2014
- Hiroaki MIYAGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140308058
- Publication date Oct 16, 2014
- Keisuke IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140233996
- Publication date Aug 21, 2014
- Keisuke IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140219677
- Publication date Aug 7, 2014
- KEISUKE IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140186080
- Publication date Jul 3, 2014
- Keisuke Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140186081
- Publication date Jul 3, 2014
- Tomoyasu Hirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
AIR-CONDITIONING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME,...
- Publication number 20140093269
- Publication date Apr 3, 2014
- Tomoyasu HIRASAWA
- F24 - HEATING RANGES VENTILATING
Information Patent Application
COOLING DEVICE HAVING A TURBULENCE GENERATING UNIT
- Publication number 20140064775
- Publication date Mar 6, 2014
- Satoshi Okano
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140060782
- Publication date Mar 6, 2014
- Keisuke IKEDA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
COOLING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND COOLING...
- Publication number 20140044462
- Publication date Feb 13, 2014
- RICOH COMPANY, LTD.
- Keisuke IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130322915
- Publication date Dec 5, 2013
- Kenichi TAKEHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20130259512
- Publication date Oct 3, 2013
- RICOH COMPANY, LTD.
- Keisuke IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120315069
- Publication date Dec 13, 2012
- KEISUKE IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tomoyasu Hirasawa

Person

Patents Grantslast 30 patents

Loop heat pipe, cooling device, and electronic device

Loop heat pipe wick, loop heat pipe, cooling device, and electronic...

Light irradiation apparatus and information rewritable system

Cooling device and image forming apparatus including same

Cooling device, laser device, and image processing apparatus

Cooling device and image forming apparatus

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus including same

Cooling device having a turbulence generating unit

Cooling device and image forming apparatus including same

Air-conditioning unit, image forming apparatus incorporating same,...

Cooling device and image forming apparatus incorporating same

Liquid cooling device that arranges a coolant flowing direction in...

Recording medium conveyor and image forming apparatus incorporating...

Image forming apparatus

Cooling device and image forming apparatus

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus

Cooling device and image forming apparatus incorporating same

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus

Image forming apparatus

Cooling device and image forming apparatus

Cooling device and image forming apparatus including the same

Cooling device and image forming apparatus including same

Fixing liquid, fixing method, fixing unit, image forming method, an...

Cooling device and image forming apparatus including same

Cooling device and image forming apparatus

Patents Applicationslast 30 patents

IMAGE PROJECTION APPARATUS

LOOP HEAT PIPE, COOLING SYSTEM, ELECTRONIC EQUIPMENT, AND WICK

EVAPORATOR, LOOP HEAT PIPE, AND ELECTRONIC DEVICE

LOOP HEAT PIPE, COOLING DEVICE, AND ELECTRONIC DEVICE

LIGHT IRRADIATION APPARATUS AND INFORMATION REWRITABLE SYSTEM

LOOP HEAT PIPE WICK, LOOP HEAT PIPE, COOLING DEVICE, AND ELECTRONIC...

LIGHT IRRADIATION APPARATUS AND INFORMATION REWRITABLE SYSTEM

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE, LASER DEVICE, AND IMAGE PROCESSING APPARATUS

COOLING DEVICE AND IMAGE FORMING APPARATUS

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS

RECORDING MEDIUM CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING...

LIQUID COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

AIR-CONDITIONING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME,...

COOLING DEVICE HAVING A TURBULENCE GENERATING UNIT

COOLING DEVICE AND IMAGE FORMING APPARATUS

COOLING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND COOLING...

IMAGE FORMING APPARATUS

COOLING DEVICE AND IMAGE FORMING APPARATUS

COOLING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME