Inventor
Hajime Miyatsuka
Inventor
Kanagawa, JP
Overview
16→
Patents
1976–1991
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 16 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%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests27%
Y10TTechnical subjects covered by former us classification24%
B22FWorking metallic powder4%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
C08LCompositions of macromolecular compounds4%
H01FMagnets4%
C22CAlloys2%
G03GElectrography2%
PatentTitleYear
5,030,521'Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position'19914,837,081'Magnetic recording medium'19894,798,755'Magnetic recording medium'19894,784,914'Magnetic recording medium'19884,784,907'Magnetic recording medium'19884,687,705'Magnetic recording medium'19874,687,704'Magnetic recording medium'19874,555,431'Magnetic recording medium'19854,537,833'Magnetic recording medium'19854,496,626'Magnetic recording medium'19854,475,946'Ferromagnetic metal particles of iron alloyed with Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Si, P, Mo, Sn, Sb and Ag coated with mono- or dialkoxysilanes'19844,437,882'Ferromagnetic powder treated with an organic silane compound'19844,431,712'Magnetic recording medium of ferromagnetic particles and binder'19844,411,956'Magnetic recording medium'19834,407,901'Magnetic recording medium'19833,944,682'Method of providing an electrophotographic coating and compositions for the method'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to RANK XEROX LTD (1)· patent assignee history
1976Based in Asaka, JP· patent location history
1983–1991Patents assigned to FUJI PHOTO FILM CO LTD (15)· patent assignee history
1983–1988Based in Odawara, JP· patent location history
1984–1991Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJI PHOTO FILM CO LTD | 15 | 1983–1991 |
| RANK XEROX LTD | 1 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 8 | 1984–1991 |
| Odawara, JP | 7 | 1983–1988 |
| Asaka, JP | 1 | 1976 |