Inventor
Eiichi Maruyama
Inventor
Kodaira, JP
Overview
Patents· 36 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Fprimary
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation23%
H01JElectric discharge tubes or discharge lamps18%
G03GElectrography10%
H10DInorganic electric semiconductor devices10%
H04NPictorial communication, e.g. television5%
C23CCoating metallic material3%
G02BOptical elements, systems or apparatus3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
G06VImage or video recognition or understanding3%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%
PatentTitleYear
4,904,989'Display device'1990RE033094'Electrophotographic member with alpha-si layers'19894,673,959'Heterojunction FET with doubly-doped channel'19874,672,015'Electrophotographic member having multilayered amorphous silicon photosensitive member'19874,613,382'Method of forming passivated polycrystalline semiconductors'19864,605,945'Semiconductor device'19864,583,122'Imaging display device'19864,559,547'Semiconductor device'19854,556,817'Photoelectric conversion apparatus'19854,556,816'Photoelectric device'19854,433,202'Thin film solar cell'19844,419,604'Light sensitive screen'19834,405,879'Photoelectric conversion device and method of producing the same'19834,394,749'Photoelectric device and method of producing the same'19834,380,557'Method of production of image pickup device'19834,378,417'Electrophotographic member with .alpha.-Si layers'19834,377,628'Electrophotographic member with .alpha.-Si and H'19834,365,013'Electrophotographic member'19824,360,821'Solid-state imaging device'19824,351,856'Semiconductor device and method of manufacturing the same'19824,331,506'Method of manufacturing target of image pickup tube'19824,323,912'Solid-state imaging device'19824,314,014'Electrophotographic plate and process for preparation thereof'19824,307,319'Semiconductor layer of oxygen depletion type cerium oxide or lead oxide'19814,307,372'Photosensor'19814,285,007'Color solid-state imager and method of making the same'19814,273,812'Method of producing material patterns by evaporating material through a perforated mask having a reinforcing bridge'19814,255,686'Storage type photosensor containing silicon and hydrogen'19814,249,106'Radiation sensitive screen'19814,233,506'Photo-sensor'19804,232,219'Photosensor'19804,227,078'Photo-sensor'19804,199,777'Semiconductor device and a method of manufacturing the same'19804,121,537'Apparatus for vacuum deposition'19784,040,985'Photoconductive films'19773,984,722'Photoconductive target of an image pickup tube and method for manufacturing the same'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1990Patents assigned to HITACHI LTD (32)· patent assignee history
1976–1990Based in Kodaira, JP· patent location history
1980Patents assigned to NIPPON TELEGRAPH & TELEPHONE (3)· patent assignee history
1982Based in Kadaira, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 32 | 1976–1990 |
| NIPPON TELEGRAPH & TELEPHONE | 3 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kodaira, JP | 35 | 1976–1990 |
| Kadaira, JP | 1 | 1982 |