Inventor
Kenji Umezu
Inventor
Shizuoka, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F24Fprimary
F24FAir-conditioning28%
F25BRefrigeration machines, plants or systems17%
G05DSystems for controlling or regulating non-electric variables14%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications14%
F25DRefrigerators7%
G01KMeasuring temperature3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
G21CNuclear reactors3%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
PatentTitleYear
4,939,910'Air conditioner'19904,840,220'Heat pump with electrically heated heat accumulator'19894,813,474'Air conditioner apparatus with improved dehumidification control'19894,748,798'Apparatus for automatically loading nuclear fuel pellets'19884,744,223'Air conditioning apparatus'19884,735,058'Air conditioning apparatus'19884,656,571'Frequency converting device and control method therefor'19874,517,812'Load control device for a heat-pump type air conditioning apparatus'19854,386,502'Humidity-measuring device for use with an air conditioner'19834,385,505'Air conditioner'19834,240,264'Interior unit of a split type air-conditioning apparatus'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1990Patents assigned to TOKYO SHIBAURA ELECTRIC CO (5)· patent assignee history
1980Based in Fuji, JP· patent location history
1983–1990Based in Shizuoka, JP· patent location history
1987–1989Patents assigned to TOSHIBA KK (5)· patent assignee history
1988Patents assigned to NIPPON NUCLEAR FUELS (1)· patent assignee history
1988Based in Yokosuka, JP· patent location history
1988Based in Ihara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOKYO SHIBAURA ELECTRIC CO | 5 | 1980–1990 |
| TOSHIBA KK | 5 | 1987–1989 |
| NIPPON NUCLEAR FUELS | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shizuoka, JP | 8 | 1983–1990 |
| Yokosuka, JP | 1 | 1988 |
| Ihara, JP | 1 | 1988 |
| Fuji, JP | 1 | 1980 |