Inventor
Masami Kawasaki
Inventor
Osaka, JP
Overview
20→
Patents
1981–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
A01DHarvesting14%
G02BOptical elements, systems or apparatus14%
B01DSeparation8%
F16HGearing5%
F16JPistons5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
A01GHorticulture3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B29CShaping or joining of plastics3%
PatentTitleYear
11,056,597Photoelectric conversion device, photosensor, power generation device, and photoelectric conversion method20217,797,829'Oil ring, manufacturing method thereof, and piston structure using the oil ring'20107,077,402'Combined oil ring'20066,179,040'Transmission shift fork, and manufacturing method thereof'20015,798,087'Method of producing gypsum'19985,536,454'Apparatus for gas-liquid contact'19965,378,442'Method for treating combustion exhaust gas'19955,098,269'Center mechanism for a tire vulcanizing machine'19924,984,419'Apparatus for mounting grass box of mower'19914,941,863'Stepless speed change mechanism in belt transmission device'19904,939,892'Gait type mower'19904,845,929'Cutter-trimmer of walk-behind type'19894,832,474'Microscope apparatus for examining wafer'19894,744,642'Microscope'19884,661,692'Microscope provided with automatic focusing device having memory means'19874,653,878'Microscope equipped with an electric device for driving revolver and stage'19874,643,540'Microscope provided with an automatically controlled illuminating optical system'19874,321,783'Mid-mounted mower'19824,291,522'Mower mounted on vehicle'19814,285,161'Mulcher'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1991Patents assigned to KUBOTA LTD (7)· patent assignee history
1981–1982Based in Sakai, JP· patent location history
1987–1989Patents assigned to OLYMPUS OPTICAL CO (5)· patent assignee history
1987–1989Based in Hachiouji, JP· patent location history
1989–1998Based in Osaka, JP· patent location history
1992–1998Patents assigned to MITSUBISHI HEAVY IND LTD (4)· patent assignee history
1995–1998Patents assigned to KANSAI ELECTRIC POWER CO (3)· patent assignee history
2001Patents assigned to FUJI UNIVANCE KK (1)· patent assignee history
2010Based in Aichi, JP· patent location history
2021Based in Wako, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KUBOTA LTD | 7 | 1981–1991 |
| OLYMPUS OPTICAL CO | 5 | 1987–1989 |
| MITSUBISHI HEAVY IND LTD | 4 | 1992–1998 |
| KANSAI ELECTRIC POWER CO | 3 | 1995–1998 |
| FUJI UNIVANCE KK | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 7 | 1989–1998 |
| Hachiouji, JP | 5 | 1987–1989 |
| Sakai, JP | 3 | 1981–1982 |
| Wako, JP | 1 | 2021 |
| Aichi, JP | 1 | 2010 |