Inventor
Hiroyuki Tadokoro
Inventor
Hitachi, JP
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography37%
H04NPictorial communication, e.g. television15%
B41JTypewriters9%
G06KGraphical data reading9%
E05FDevices for moving wings into open or closed position7%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof7%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons2%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons2%
G01DMeasuring not specially adapted for a specific variable2%
PatentTitleYear
7,119,790'Display apparatus'20066,204,933'Information print system and image processing apparatus'20016,081,683'Color electrophotographic apparatus with obliquely arranged photosensitive belt'20005,761,568'Electro-photographic apparatus having transfer bias control'19985,729,267'Image forming apparatus having image transfer with toner cleaning function'19985,648,809'Color image control apparatus having photosensitive body and intermediate transfer body'19975,602,578'Color printer with transfer and superposition of different color toner images onto intermediate transcription member'19975,555,074'Electrophotographic apparatus and electrophotographic method'19965,550,956'Color printer'19965,530,527'Color electrophotographic device with developer stirring'19965,493,384'Color electro-photographic apparatus with endless-belt-shaped photosensitive member'19965,434,652'Color electrophotographic device with developer stirring'19955,425,931'Small diameter pitch-based carbon fiber bundle and production method thereof'19955,386,223'Method of apparatus for recording color image by overlapping toner images of different colors'19955,373,354'Color electrophotographic device and method'19945,285,221'Color image electrophotographic apparatus having photosensitive body and intermediate transfer body'19945,164,781'Color image electrophotographic apparatus for printing long-size copy images'19925,113,226'Image transfer apparatus'19924,942,407'Scanning type image recording apparatus'19904,922,272'High precision image recording apparatus'19904,589,764'Laser beam printer control apparatus'19864,586,147'History information providing device for printers'19864,549,092'Control system for illumination lamp installed in building equipped with door operation control apparatus'19854,527,093'Exposure amount control device for a copying machine'19854,475,069'Door operation control apparatus'19844,367,470'Door operation control apparatus'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–2001Patents assigned to HITACHI LTD (24)· patent assignee history
1983–2001Based in Hitachi, JP· patent location history
1990Patents assigned to HITACHI SETSUBI ENG KK (1)· patent assignee history
1995Patents assigned to NIPPON STEEL CHEMICAL CO (1)· patent assignee history
1995Based in Himeji, JP· patent location history
2001Patents assigned to HITACHI INFORMATION TECHNOLOGY (1)· patent assignee history
2006Patents assigned to CLARION CO LTD (1)· patent assignee history
2006Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 24 | 1983–2001 |
| CLARION CO LTD | 1 | 2006 |
| HITACHI INFORMATION TECHNOLOGY | 1 | 2001 |
| HITACHI SETSUBI ENG KK | 1 | 1990 |
| NIPPON STEEL CHEMICAL CO | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 24 | 1983–2001 |
| Tokyo, JP | 1 | 2006 |
| Himeji, JP | 1 | 1995 |