Inventor
Masatoshi Iwata
Inventor
Akishima, JP
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes21%
H10HInorganic light-emitting semiconductor devices having potential barriers15%
F02BInternal-combustion piston engines12%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light6%
A61BDiagnosis3%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing3%
C30BSingle-crystal growth3%
G03DApparatus for processing exposed photographic materials3%
PatentTitleYear
9,543,469'III nitride semiconductor epitaxial substrate and III nitride semiconductor light emitting device, and methods of producing the same'20179,393,464'Golf club head and golf club'20168,278,822'Light-emitting element'20128,115,193'Vertical resonator type light emitting diode'20128,044,439'Light-emitting device and manufacturing method of the same'20117,989,799'Surface light emitting element'2011H0001263'Image forming method and apparatus'19935,023,898'X-ray radiographic system'19914,731,322'Light-sensitive silver halide photographic material for X-ray photography'19884,680,252'Silver halide light-sensitive photographic material for radiographic use'19874,639,417'Silver halide X-ray photosensitive material'19874,514,491'Photosensitive silver halide emulsion'19854,446,228'Silver halide photographic material'19844,413,781'Fuel injection nozzle'19834,406,404'Diesel fuel injection nozzle'19834,394,963'Fuel injection nozzle'19834,381,077'Diesel fuel injection nozzle'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to KOMATSU MFG CO LTD (4)· patent assignee history
1983Based in Oyama, JP· patent location history
1984–1991Patents assigned to KONISHIROKU PHOTO IND (6)· patent assignee history
1984–1993Based in Akishima, JP· patent location history
1987–1991Based in Hino, JP· patent location history
2011–2017Patents assigned to DOWA ELECTRONICS MATERIALS CO LTD (5)· patent assignee history
2011–2012Based in Chiyoda-ku, JP· patent location history
2012Patents assigned to IWATA MASATOSHI (2)· patent assignee history
2012Patents assigned to KOBAYASHI YOSHIYUKI (1)· patent assignee history
2017Based in Akita, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONISHIROKU PHOTO IND | 6 | 1984–1991 |
| DOWA ELECTRONICS MATERIALS CO LTD | 5 | 2011–2017 |
| KOMATSU MFG CO LTD | 4 | 1983 |
| IWATA MASATOSHIself | 2 | 2012 |
| KOBAYASHI YOSHIYUKI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Akishima, JP | 4 | 1984–1993 |
| Oyama, JP | 4 | 1983 |
| Chiyoda-ku, JP | 3 | 2011–2012 |
| Hino, JP | 3 | 1987–1991 |
| Akita, JP | 1 | 2017 |