Inventor
Masahiko Nakazawa
Inventor
Matsumoto, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein24%
F16KValves18%
Y10TTechnical subjects covered by former us classification13%
C09DCoating compositions, e.g. paints, varnishes or lacquers11%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
G05DSystems for controlling or regulating non-electric variables7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties2%
F04BPositive-displacement machines for liquids2%
G02BOptical elements, systems or apparatus2%
PatentTitleYear
10,597,541Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatus202010,323,128Method of manufacturing electrophoretic particle, electrophoretic particle, electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatus201910,150,877Electrophoretic dispersion liquid, method of manufacturing electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatus201810,113,072Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatus20189,958,753Electrophoresis dispersion liquid20189,952,461Display device20189,804,472'Electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatus'20179,645,466'Electrophoretic particles, electrophoretic dispersion liquid, display sheet, display device, and electronic equipment'20179,645,467'Electrophoretic particles, electrophoretic dispersion liquid, display sheet, display device, and electronic equipment'20179,323,126'Electrophoretic particles, method for manufacturing electrophoretic particles, electrophoresis dispersion, display device, and electronic apparatus'20167,180,196'Semiconductor device mounting method, semiconductor device mounting structure, electro-optical device, electro-optical device manufacturing method and electronic device'20075,967,489'Fluid control apparatus'19995,429,484'Liquid feed pump particularly used for liquid medicine and liquid feed apparatus for filling of liquid medicine'19955,427,357'Control valve'19955,398,725'Flow control device'19955,379,982'Control valve'19955,178,366'Valve seal'19935,161,571'Check valve'19925,107,885'Check valve'19924,804,164'Flow control device'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1992Based in Tokyo, JP· patent location history
1992–1993Patents assigned to MASAKO KIYOHARA (2)· patent assignee history
1993–1995Based in Osaka, JP· patent location history
1995–1999Patents assigned to FUJIKIN KK (4)· patent assignee history
1999Patents assigned to AERA JAPAN LTD (1)· patent assignee history
2007–2018Patents assigned to SEIKO EPSON CORP (7)· patent assignee history
2007Based in Hata-machi, JP· patent location history
2016–2020Based in Matsumoto, JP· patent location history
2018–2020Patents assigned to E INK CORP (4)· patent assignee history
2018Based in Niigata, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKO EPSON CORP | 7 | 2007–2018 |
| E INK CORP | 4 | 2018–2020 |
| FUJIKIN KK | 4 | 1995–1999 |
| MASAKO KIYOHARA | 2 | 1992–1993 |
| AERA JAPAN LTD | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Matsumoto, JP | 9 | 2016–2020 |
| Osaka, JP | 5 | 1993–1995 |
| Tokyo, JP | 3 | 1989–1992 |
| Niigata, JP | 1 | 2018 |
| Hata-machi, JP | 1 | 2007 |