Inventor
Masaaki Matsushima
Inventor
Yokohama, JP
Overview
Patents· 32 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%
G11BInformation storage based on relative movement between record carrier and transducer14%
Y10TTechnical subjects covered by former us classification9%
C03BManufacture, shaping, or supplementary processes6%
H01FMagnets6%
C22CAlloys4%
C23CCoating metallic material4%
G02CSpectacles4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%
PatentTitleYear
10,984,963Carbonaceous material, carbonaceous material-containing electrode material for electric double layer capacitor, electrode for electric double layer capacitor, and electric double layer capacitor202110,156,740Spectacle wearing parameter measurement device, spectacle wearing parameter measurement program, and position specifying method20189,242,889'Method of manufacturing formed article, glass material, and method of determining shape of glass material and mold'20168,567,861'Seat with heater'20138,277,704'Method of manufacturing formed article, mold and method of manufacturing the same'20128,197,727'Method of manufacturing formed article, covering member, and forming apparatus comprising the same'20127,950,252'Method of manufacturing formed article, support member, and forming apparatus'20117,158,222'Method and device for evaluating spectacle lens or mold for molding spectacle lens, and method and system for manufacturing spectacle lens'20077,041,391'Method for forming thin films'20066,932,474'Progressive-power lens'20056,760,051'Image forming apparatus with switching elements'20046,383,346'Method for forming thin films'20026,346,678'Circuit board and method of manufacturing a circuit board'20026,184,059'Process of making diamond-metal ohmic junction semiconductor device'20015,777,828'Magnetic alloy and magnetic head having at least a part made of the magnetic alloy'19985,738,950'Magnetooptical recording medium'19985,478,416'Magnetic alloy'19955,380,349'Mold having a diamond layer, for molding optical elements'19955,119,328'Solid state memory device'19925,029,429'Sealing device for facsimile receiving paper'19914,837,123'Mask structure for lithography, method of preparation thereof and lithographic method'19894,777,068'Optical recording medium'19884,741,967'Magnetic recording medium'19884,734,334'Magneto-optical recording medium'19884,710,418'Optical recording medium'19874,693,943'Magnetooptical recording medium'19874,677,042'Mask structure for lithography, method for preparation thereof and lithographic method'19874,658,388'Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride'19874,618,537'Recording medium'19864,578,322'Recording medium'19864,053,209'Electrochromic device'19774,026,384'Reconstituted mica acoustic diaphragm'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2006Patents assigned to CANON KK (21)· patent assignee history
1977–2002Based in Yokohama, JP· patent location history
1986–1998Based in Machida, JP· patent location history
1995–2006Based in Kanagawa, JP· patent location history
2005–2016Patents assigned to HOYA CORP (6)· patent assignee history
2005–2018Based in Tokyo, JP· patent location history
2011–2016Based in Shinjuku-ku, JP· patent location history
2012–2016Patents assigned to MATSUSHIMA MASAAKI (4)· patent assignee history
2012–2016Patents assigned to CHISHA MIKIO (3)· patent assignee history
2012–2016Patents assigned to TAGUCHI NORIAKI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 21 | 1977–2006 |
| HOYA CORP | 6 | 2005–2016 |
| MATSUSHIMA MASAAKIself | 4 | 2012–2016 |
| CHISHA MIKIO | 3 | 2012–2016 |
| TAGUCHI NORIAKI | 3 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 11 | 1977–2002 |
| Machida, JP | 6 | 1986–1998 |
| Shinjuku-ku, JP | 4 | 2011–2016 |
| Kanagawa, JP | 4 | 1995–2006 |
| Tokyo, JP | 3 | 2005–2018 |