Inventor
Masaaki Fujiyama
Inventor
Kanagawa, JP
Overview
119→
Patents
1977–2002
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 119 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 transducer36%
Y10TTechnical subjects covered by former us classification28%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests28%
B24DTools for grinding, buffing or sharpening3%
B24BMachines, devices, or processes for grinding or polishing2%
G03CPhotosensitive materials for photographic purposes1%
B29BPreparation or pretreatment of the material to be shaped0%
B29CShaping or joining of plastics0%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form0%
C08LCompositions of macromolecular compounds0%
PatentTitleYear
6,376,057'Packaging material for photographic photosensitive material'20026,012,969'Abrasive member for very high return loss optical connector ferrules'20005,711,772'Abrasive member'19985,695,386'Cleaning method using abrasive tape'19975,639,284'Abrasive member'19975,633,068'Abrasive tape having an interlayer for magnetic head cleaning and polishing'19975,632,789'Abrasive tape'19975,611,826'Abrasive tape'19975,573,444'Polishing method'19965,456,734'Abrasive member'19955,366,525'Manufacture of abrasive tape'19945,300,244'Method of preparing magnetic coating composition'19945,089,330'Abrasive tape in which a single compound serves to improve dispersion of abrasive particles and also as antistatic and lubricant for the tape'19925,075,180'Magnetic recording medium and method for preparing the same'19915,039,554'Process for preparing a backing layer of a magnetic recording medium which includes the predispersing of a fine .alpha.-Al.sub.2 O.sub.3 powder in a solvent containing a small amount of binder'19915,036,629'Method for preparing a magnetic recording medium'19915,023,135'Magnetic recording medium which contains a binder of nitrogen containing vinyl chloride polymer and an amino group containing polyurethane'19915,009,929'Process for the preparation of magnetic recording medium'19915,000,983'Process for the preparation of magnetic recording medium'19914,946,534'Process for the preparation of magnetic recording disk'19904,937,098'Method for manufacturing a magnetic recording medium'19904,922,675'Abrasive tape'19904,916,024'Magnetic recording medium'19904,911,997'Magnetic recording medium'19904,888,212'Process for the preparation of magnetic recording medium'19894,851,288'Magnetic recording system'19894,844,991'Magnetic recording medium and process for the preparation of the same'19894,840,842'Abrasive tape'19894,812,330'Process for producing a magnetic recording medium'19894,789,590'Abrasive tape'19884,780,365'Magnetic recording medium'19884,767,644'Method of making abrasive tape'19884,766,511'Anti-static surface for magnetic tape cartridge'19884,761,243'Process for the preparation of magnetic paint'19884,745,017'Magnetic recording medium'19884,745,001'Process for the preparation of magnetic recording medium'19884,743,500'Magnetic recording medium'19884,740,419'Magnetic recording media'19884,726,992'Magnetic recording medium'19884,701,364'Tape for cleaning magnetic head'19874,696,859'Magnetic recording medium'19874,690,863'Magnetic recording media and process for producing same'19874,689,265'Magnetic recording medium'19874,687,706'Magnetic recording medium'19874,687,704'Magnetic recording medium'19874,687,703'Magnetic recording medium'19874,678,697'Magnetic recording medium'19874,678,706'Magnetic recording medium'19874,670,333'Magnetic recording media'19874,668,568'Magnetic recording medium'19874,666,770'Magnetic recording medium'19874,657,814'Magnetic recording medium'19874,657,813'Magnetic recording medium'19874,656,088'Magnetic recording medium'19874,652,958'Tape for cleaning magnetic head'19874,650,720'Magnetic recording medium'19874,647,503'Magnetic recording medium including magnetic layer with carbon black particles and a fatty acid ester'19874,643,941'Magnetic recording medium'19874,632,868'Magnetic recording media'19864,629,653'Magnetic recording medium having laminated hexagonal ferrite platelets'19864,626,469'Magnetic recording material'19864,617,226'Magnetic recording medium'19864,612,235'Magnetic recording medium'19864,601,946'Magnetic recording medium'19864,600,638'Magnetic recording medium'19864,598,014'Magnetic recording medium'19864,592,952'Magnetic recording medium'19864,582,757'Magnetic recording medium'19864,582,754'Magnetic recording medium'19864,579,778'Magnetic recording medium'19864,578,311'Magnetic recording medium'19864,569,856'Method for preparing magnetic recording medium'19864,567,057'Method of making magnetic recording medium'19864,567,063'Process for producing magnetic recording media'19864,552,807'Magnetic recording medium'19854,552,799'Magnetic recording medium'19854,552,808'Magnetic recording material using plate-shaped ferromagnetic particles'19854,546,038'Magnetic recording medium'19854,544,601'Magnetic recording medium'19854,532,172'Leader or trailer tape'19854,528,240'Magnetic recording medium'19854,504,542'Magnetic recording medium having a subbing layer of amorphous saturated polyesters'19854,499,121'Method of preparing a magnetic recording medium with a calendering treatment'19854,487,802'Magnetic recording medium'19844,474,848'Magnetic recording medium'19844,474,843'Magnetic recording medium'19844,450,199'Magnetic recording medium'19844,448,842'Magnetic recording medium'19844,444,842'Magnetic recording medium'19844,439,486'Magnetic recording medium'19844,427,738'Magnetic recording medium'19844,420,532'Magnetic recording medium'19834,414,270'Magnetic recording medium'19834,411,953'Magnetic recording medium'19834,411,966'Magnetic recording medium'19834,397,911'Cleaning tape'19834,391,851'Process for producing a magnetic recording medium'19834,388,360'Magnetic recording medium'19834,367,261'Magnetic recording medium'19834,356,232'Method for producing magnetic recording medium'19824,343,831'Process for producing magnetic recording medium'19824,337,288'Magnetic recording medium'19824,324,177'Calender roll for supercalender'19824,310,599'Magnetic recording element'19824,275,108'Leader or trailer tape for a magnetic tape'19814,273,797'Method of detecting pinholes in a magnetic recording medium'19814,187,345'Magnetic recording medium'19804,171,406'Magnetic recording medium'19794,164,604'Leader or trailer tape for a magnetic recording medium'19794,146,031'Leader or trailer for a magnetic tape'19794,146,671'Magnetic recording substance'19794,138,229'Cleaning tape for magnetic head'19794,135,032'Magnetic recording medium'19794,135,031'Magnetic recording substance'19794,132,827'Magnetic recording substance'19794,128,673'Method for super calendering magnetic recording elements'19784,117,190'Magnetic recording medium'19784,003,743'Process for production of motion picture film with sound track containing p-toluenesulfonic acid and glacial acetic acid'19774,002,804'Magnetic recording material'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2002Patents assigned to FUJI PHOTO FILM CO LTD (119)· patent assignee history
1977–1991Based in Odawara, JP· patent location history
1984–2002Based in Kanagawa, JP· patent location history
1985–1987Based in Minami-ashigara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJI PHOTO FILM CO LTD | 119 | 1977–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 69 | 1984–2002 |
| Odawara, JP | 44 | 1977–1991 |
| Minami-ashigara, JP | 6 | 1985–1987 |