Inventor
Isao Hakamada
Inventor
Yokohama, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light35%
H04NPictorial communication, e.g. television15%
B82YSpecific uses or applications of nanostructures10%
G02BOptical elements, systems or apparatus10%
H10HInorganic light-emitting semiconductor devices having potential barriers10%
B41JTypewriters5%
G03GElectrography5%
H01JElectric discharge tubes or discharge lamps5%
H10DInorganic electric semiconductor devices5%
PatentTitleYear
4,971,415'Multibeam emitting device'19904,858,062'Charging device'19894,829,534'Semiconductor laser device having a semiconductor region for creating a depletion layer in a laser active layer for controlling current flow therethrough'19894,796,067'Semiconductor device having a superlattice structure'19894,794,611'Semiconductor laser having superlattice structure'19884,794,609'Semiconductor laser provided with a plurality of lasers in the form of an array'19884,706,254'Semiconductor device and its fabrication'19874,667,209'Image recording apparatus'19874,403,243'Semi-conductor laser apparatus with support and soldering means for light-transmitting member'19834,323,297'Image forming optical system using a semiconductor laser'19824,253,735'Image forming optical system for semiconductor laser'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1990Patents assigned to CANON KK (11)· patent assignee history
1981–1990Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 11 | 1981–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 11 | 1981–1990 |