Inventor
Tomihisa Ohuchi
Inventor
Tsukuba, JP
Overview
19→
Patents
1982–2002
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F25Bprimary
F25BRefrigeration machines, plants or systems27%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications26%
Y02ATechnologies for adaptation to climate change24%
F24FAir-conditioning6%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application4%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
F23CMethods or apparatus for combustion using fluid fuel or solid fuel suspended in a carrier gas or air1%
F23MCasings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges1%
PatentTitleYear
6,336,343'Two-stage absorption refrigerating apparatus'20026,279,343'High temperature regenerator for absorption water cooling and heating machine'20016,247,331'Absorption refrigerator and the method of producing the same'20016,233,968'Absorption refrigerating machine'20016,122,930'Absorption refrigerating machine'20005,577,555'Heat exchanger'19965,517,830'Multiple type absorption air conditioning system'19965,447,042'Multiple type absorption air conditioning system'19955,435,154'High temperature regenerator of an absorption type hot and cold water generator and absorption type hot and cold water generator'19955,289,868'Absorption chiller heater and unit-type air conditioning system'19945,282,369'Multiple type absorption air conditioning system'19945,275,010'Control method and apparatus of absorption chiller heater'19945,259,202'Absorption air-conditioning system'19935,218,844'Absorption heat pump apparatus with indoor and outdoor heat exchangers'19935,205,137'Absorption air conditioner'19935,186,241'Chemical heat pump'19935,048,308'Absorption refrigerator'19914,941,329'Double effect air-cooled absorption refrigerating machine'19904,328,679'Capability control apparatus for cooling system having direct expansion type evaporator'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–2002Patents assigned to HITACHI LTD (19)· patent assignee history
1982Based in Ibaraki, JP· patent location history
1990–2002Based in Tsukuba, JP· patent location history
1996Patents assigned to HITACHI CABLE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 19 | 1982–2002 |
| HITACHI CABLE | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsukuba, JP | 18 | 1990–2002 |
| Ibaraki, JP | 1 | 1982 |