Inventor
Takeshi Matsuura
Inventor
Kyoto, JP
Overview
17→
Patents
1982–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 17 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 digests28%
G11BInformation storage based on relative movement between record carrier and transducer22%
Y10TTechnical subjects covered by former us classification17%
B01DSeparation14%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for3%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
C08LCompositions of macromolecular compounds3%
G02BOptical elements, systems or apparatus3%
PatentTitleYear
11,003,044Electro-optic device202111,003,043Optical modulator202110,989,980Optical modulator20219,346,021'Composite membranes for membrane distillation and related methods of manufacture'20166,419,725'Process of forming a permeable gas separation material'20025,954,966'Membrane composition and method of preparation'19995,415,928'Magnetic recording tape'19954,871,606'Magnetic recording medium'19894,814,084'Reverse osmosis membrane of cellulosic material'19894,769,293'Magnetic recording medium and production thereof'19884,744,807'Method of manufacturing a cellulose acetate membrane and the membrane so produced'19884,716,076'Magnetic recording medium'19874,618,536'Magnetic recording medium'19864,561,034'Magnetic recording medium'19854,363,850'Magnetic recording medium'19824,322,448'Method of concentrating natural fruit juices by reverse osmosis'19824,322,474'Magnetic recording medium'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1995Patents assigned to HITACHI MAXELL (8)· patent assignee history
1982–1989Patents assigned to CANADIAN PATENTS DEV (3)· patent assignee history
1982–1995Based in Kyoto, JP· patent location history
1982–2016Based in Ottawa, CA· patent location history
1985Based in Otokuni-gun, JP· patent location history
1988–1989Based in Gloucester, CA· patent location history
1999Patents assigned to FIELDING CHEMICALS LIMITED (1)· patent assignee history
2021Patents assigned to FUJITSU OPTICAL COMPONENTS LTD (3)· patent assignee history
2021Patents assigned to TDK CORP (3)· patent assignee history
2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI MAXELL | 8 | 1982–1995 |
| CANADIAN PATENTS DEV | 3 | 1982–1989 |
| FUJITSU OPTICAL COMPONENTS LTD | 3 | 2021 |
| TDK CORP | 3 | 2021 |
| FIELDING CHEMICALS LIMITED | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kyoto, JP | 7 | 1982–1995 |
| Ottawa, CA | 4 | 1982–2016 |
| Tokyo, JP | 3 | 2021 |
| Gloucester, CA | 2 | 1988–1989 |
| Otokuni-gun, JP | 1 | 1985 |