Inventor
Kazutaka Yamashita
Inventor
Tochigi, JP
Overview
18→
Patents
1977–2013
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification27%
G11BInformation storage based on relative movement between record carrier and transducer23%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
A61FFilters implantable into blood vessels2%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body2%
C03CChemical composition of glasses, glazes or vitreous enamels2%
C08JWorking-up2%
C09KMaterials for miscellaneous applications, not provided for elsewhere2%
PatentTitleYear
8,357,189'Physiology enhancing device'20136,284,361'Magnetic recording medium and process for producing the same'20016,139,937'Magnetic recording medium'20006,103,340'Magnetic recording medium'20006,063,489'Magnetic recording medium comprising a mixed magnetic region having a thickness relative to the total thickness of magnetic layers'20005,814,394'Magnetic recording medium'19985,795,642'Magnetic recording medium'19985,792,570'Magnetic recording medium'19985,789,063'Magnetic recording medium'19985,718,978'Magnetic recording medium having a magnetic layer which includes magnetic particles, polurethane resin, vinyl chloride copolymer, and an amine compound'19985,705,268'Magnetic recording medium with magnetic powder in lower magnetic layer having protective image diameters'19985,629,075'Magnetic recording medium having a substrate containing magnetic powder'19974,808,895'Acceleration control apparatus'19894,795,955'Position control apparatus'19894,101,518'Resin composition for powder coatings'19784,092,295'Epoxy resin composition containing polycarboxylic acid compound'19784,088,707'Resin composition for powder coatings'19784,006,272'Process for preparation of glass fiber mats'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2013Patents assigned to KAO CORP (15)· patent assignee history
1977–1978Based in Wakayama, JP· patent location history
1989Patents assigned to TOSHIBA MACHINE CO LTD (2)· patent assignee history
1989Based in Numazu, JP· patent location history
1997–2013Based in Tochigi, JP· patent location history
2001Patents assigned to FUJI PHOTO FILM CO LTD (1)· patent assignee history
2013Patents assigned to HARA KATSUTOSHI (1)· patent assignee history
2013Patents assigned to IGAKI MICHIHITO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KAO CORP | 15 | 1977–2013 |
| TOSHIBA MACHINE CO LTD | 2 | 1989 |
| FUJI PHOTO FILM CO LTD | 1 | 2001 |
| HARA KATSUTOSHI | 1 | 2013 |
| IGAKI MICHIHITO | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tochigi, JP | 12 | 1997–2013 |
| Wakayama, JP | 4 | 1977–1978 |
| Numazu, JP | 2 | 1989 |