Inventor
Makoto Itonaga
Inventor
Yokohama, JP
Overview
Patents· 27 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 transducer52%
G01NInvestigating or analysing materials by determining their chemical or physical properties23%
B01LChemical or physical laboratory apparatus for general use6%
G01DMeasuring not specially adapted for a specific variable6%
G01BMeasuring length, thickness or similar linear dimensions3%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock3%
H01FMagnets3%
H03MCoding3%
PatentTitleYear
10,962,531Method of capturing exosomes202110,866,233Analysis device and analysis method202010,627,398Analysis device and analysis method202010,629,237Magnet structure, clamping mechanism, and optical disc apparatus202010,520,417Analysis method and analysis device201910,119,962Sample analysis device and capturing method for exosomes20188,691,160'Sample analysis disc and method of producing sample analysis disc'20148,611,411'Equalizer and equalization method'20137,385,904'Optical pickup device'20087,301,881'Optical pickup device'20077,301,882'Optical pickup device and diffractive optical element'20077,239,596'Optical pickup device and optical recording medium driving apparatus'20077,233,562'Optical pickup device'20077,206,275'Optical pickup device'20077,061,839'Optical information recording medium and recording/reproducing apparatus for such medium'20067,050,378'Optical pickup'20066,683,922'Data decoding apparatus and data decoding method'20046,636,366'Objective for optical disk, optical pickup, optical disk writer-reader, and optical disk reader'20036,636,471'Optical pick-up'20036,038,208'Information recording disc recorded with signals at two different recording densities'20005,623,466'Optical pickup apparatus with skew error control and optical information recording and/or reproducing apparatus using the same'19975,204,852'Optical disc-like recoding medium and manufacturing method thereof'19935,006,703'Reflective optical rotary encoder disc'19914,929,822'Detection system with an optical encoder to optically detect displacement amount of a movable device'19904,716,560'Recording disc and method for fabricating same'19874,695,162'Film thickness measuring apparatus'19874,653,924'Rotating analyzer type ellipsometer'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2008Patents assigned to VICTOR COMPANY OF JAPAN (19)· patent assignee history
1987–2021Based in Yokohama, JP· patent location history
1987–2006Based in Kanagawa, JP· patent location history
1990Based in Yokahama, JP· patent location history
2013–2021Patents assigned to JVC KENWOOD CORP (8)· patent assignee history
2013–2014Patents assigned to ITONAGA MAKOTO (2)· patent assignee history
2013Patents assigned to HAYAMI ATSUSHI (1)· patent assignee history
2014Patents assigned to HASEGAWA YUICHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VICTOR COMPANY OF JAPAN | 19 | 1987–2008 |
| JVC KENWOOD CORP | 8 | 2013–2021 |
| ITONAGA MAKOTOself | 2 | 2013–2014 |
| HASEGAWA YUICHI | 1 | 2014 |
| HAYAMI ATSUSHI | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 22 | 1987–2021 |
| Kanagawa, JP | 4 | 1987–2006 |
| Yokahama, JP | 1 | 1990 |