Inventor

Yoshio Ogawa

Inventor

Tokyo, JP

Overview

26→

Patents

1976–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F25Bprimary

F25BRefrigeration machines, plants or systems14%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications12%

B01DSeparation8%

F24FAir-conditioning8%

G05BControl or regulating systems in general6%

H04NPictorial communication, e.g. television6%

Y10TTechnical subjects covered by former us classification6%

F16DCouplings for transmitting rotation4%

F16KValves4%

G05DSystems for controlling or regulating non-electric variables4%

PatentTitleYear

11,032,863Wireless communication device and wireless communication method for performing a plurality of wireless communications by performing time division multiplexing2021 10,774,942Electric valve control device and electric valve device including the same2020 10,571,875Electric valve control device and electric valve device including the same2020 9,459,029'Valve controller, valve controlling method, refrigeration and cold storage system, device and method for controlling the system'2016 8,271,142'Device and method for controlling valve'2012 7,762,094'Valve control system, valve control apparatus and valve control method'2010 7,025,542'Guide device for workpiece machining head, machine having the same, and guide method'2006 6,002,218'Control device for air conditioner'1999 5,837,213'Process for the desulfurization of sulfurous acid gas-containing waste gas'1998 5,712,540'Control method and apparatus for controlling motors of air conditioner'1998 5,663,627'Control apparatus for controlling motor of air conditioner'1997 5,645,802'Method and apparatus for the treatment of a waste gas containing dists and chemical contaminants'1997 5,532,756'Color video signal detector and color video signal detecting method'1996 5,249,102'Portable electric device with sliding switch cover'1993 D0336298'Tape player'1993 D0336085'Magnetic audio tape cassette'1993 D0336086'Magnetic audio tape cassette'1993 D0330025'Dictating machine'1992 5,120,518'Method and apparatus for the treatment of a waste gas containing dusts and chemical contaminants'1992 4,911,901'Wet desulfurization process for treating a flue gas'1990 4,829,571'Headphone'1989 D0270168'Typewriter'1983 4,311,224'Torque limiter'1982 4,291,553'Torque limiter'1981 4,167,757'Television receiver'1979 3,944,734'Video projecting system'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to SONY CORP (10)· patent assignee history

1976–1993Based in Yokohama, JP· patent location history

1981–2020Based in Tokyo, JP· patent location history

1990–1998Patents assigned to CHIYODA CHEM ENG CONSTRUCT CO (4)· patent assignee history

1993Based in Kanagawa, JP· patent location history

1997–1999Patents assigned to FUJITSU GENERAL LTD (3)· patent assignee history

2010–2020Patents assigned to FUJIKOKI CORP (5)· patent assignee history

2012–2016Patents assigned to OGAWA YOSHIO (2)· patent assignee history

2012–2016Based in Setagaya, JP· patent location history

2021Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SONY CORP	10	1976–1996
FUJIKOKI CORP	5	2010–2020
CHIYODA CHEM ENG CONSTRUCT CO	4	1990–1998
FUJITSU GENERAL LTD	3	1997–1999
OGAWA YOSHIOself	2	2012–2016

Locations

Location	Patents	Span
Tokyo, JP	13	1981–2020
Yokohama, JP	6	1976–1993
Setagaya, JP	2	2012–2016
Kanagawa, JP	2	1993
Nagano, JP	1	2021