Inventor
Youichi Ogawa
Inventor
Tokorozawa, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer29%
G01MTesting static or dynamic balance of machines or structures8%
H04LTransmission of digital information, e.g. telegraphic communication8%
B29CShaping or joining of plastics4%
B29DProducing particular articles from plastics or from substances in a plastic state4%
B29LIndexing scheme associated with subclass b29c, relating to particular articles4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G02BOptical elements, systems or apparatus4%
G07CTime or attendance registers4%
H01LSemiconductor devices4%
PatentTitleYear
10,943,966Display device202110,885,726Vehicle test system, recording medium recorded with vehicle test system program, vehicle test method, and running resistance setting apparatus20219,156,196'Method of manufacturing optical elements'20158,665,425'Eccentricity measuring method'20148,416,940'Subscriber accommodating apparatus, transfer control method, communication system, and program product'20137,986,604'Optical element and optical pickup device'20115,068,144'Perpendicular magnetic recording medium and method for producing the same'19914,879,705'Automatic loading disc player'19894,829,502'Automatic loading disc player'19894,701,902'Automatic loading disc player'19874,540,897'Digital modulation signal reading device'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1989Patents assigned to PIONEER ELECTRONIC CORP (4)· patent assignee history
1987–1989Based in Tokorozawa, JP· patent location history
1991Patents assigned to HITACHI MAXELL (1)· patent assignee history
2011–2015Patents assigned to KONICA MINOLTA OPTO INC (2)· patent assignee history
2011–2015Based in Sakai, JP· patent location history
2013–2015Patents assigned to OGAWA YOUICHI (3)· patent assignee history
2013–2021Based in Tokyo, JP· patent location history
2014Based in Tachikawa, JP· patent location history
2021Patents assigned to HORIBA LTD (1)· patent assignee history
2021Based in Kyoto, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PIONEER ELECTRONIC CORP | 4 | 1985–1989 |
| OGAWA YOUICHIself | 3 | 2013–2015 |
| KONICA MINOLTA OPTO INC | 2 | 2011–2015 |
| HITACHI MAXELL | 1 | 1991 |
| HORIBA LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokorozawa, JP | 3 | 1987–1989 |
| Tokyo, JP | 2 | 2013–2021 |
| Sakai, JP | 2 | 2011–2015 |
| Kyoto, JP | 1 | 2021 |
| Tachikawa, JP | 1 | 2014 |