Inventor
Yoshiki Yoshida
Inventor
Kanagawa, JP
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television24%
G03GElectrography16%
C07DHeterocyclic compounds11%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them11%
G06KGraphical data reading11%
G02BOptical elements, systems or apparatus8%
G01FMeasuring volume, volume flow, mass flow or liquid level5%
A61KPreparations for medical, dental or toiletry purposes3%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations3%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light3%
PatentTitleYear
10,352,741Flow rate measurement method and apparatus20199,347,810'Method and apparatus for measuring a pulsatingly fluctuating flow rate'20168,107,833'Image forming apparatus and method of correcting color misregistration in image forming apparatus'20127,589,846'Method and apparatus for image forming capable of effectively correcting alignment errors of elementary color outputs to be superposed into an image'20097,573,494'Image forming apparatus, an optical scanning apparatus and an image forming method'20097,528,851'Method and apparatus for forming images capable of reducing color registration errors'20097,505,057'Apparatus, method, and program for color image forming capable of efficiently correcting displacement'20097,355,765'Optical scanning apparatus and an image formation apparatus therewith'20087,173,761'Fresnel lens sheet'20077,136,085'Image-forming apparatus and optical scanner'20067,072,109'Projection screen and projection display'20066,947,225'Fresnel lens sheet, process of producing Fresnel lens sheet, mold for use in the production process, and rear projection screen comprising the Fresnel lens sheet'20056,788,320'Image formation apparatus and registration method'20046,762,883'Lenticular lens sheet and rear projection screen'20046,421,181'Lenticular lens sheet and rear projection screen'20026,150,351'Cephem compounds and pharmaceutical use thereof'2000D0374965'ATM communication apparatus'19965,532,354'Intermediates for cephem compounds'1996D0358753'Frequency inverter'19955,401,734'Cephem compounds'19955,376,994'Compact BI-color electrophotographic image forming apparatus'19945,309,182'Bicolor image forming apparatus for forming a bicolor image on a photoconductive element'19945,244,890'Cephem compounds'19935,068,676'Image data storing device for an image forming apparatus'19915,027,117'Conversion using a variable reference based on image density'19914,967,284'Image forming apparatus and method of controlling output of semiconductor laser'19904,933,874'Printer'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2009Patents assigned to RICOH KK (13)· patent assignee history
1990–1991Based in Yokohama, JP· patent location history
1993–2000Patents assigned to FUJISAWA PHARMACEUTICAL CO (4)· patent assignee history
1993–2000Based in Suita, JP· patent location history
1994–2009Based in Kawasaki, JP· patent location history
1995–1996Patents assigned to HITACHI LTD (2)· patent assignee history
2002–2007Patents assigned to DAINIPPON PRINTING CO LTD (5)· patent assignee history
2004–2007Based in Shinjuku-ku, JP· patent location history
2006–2012Based in Kanagawa, JP· patent location history
2016–2019Patents assigned to JAPAN AEROSPACE EXPLORATION (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 13 | 1990–2009 |
| DAINIPPON PRINTING CO LTD | 5 | 2002–2007 |
| FUJISAWA PHARMACEUTICAL CO | 4 | 1993–2000 |
| HITACHI LTD | 2 | 1995–1996 |
| JAPAN AEROSPACE EXPLORATION | 2 | 2016–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 6 | 2006–2012 |
| Suita, JP | 4 | 1993–2000 |
| Yokohama, JP | 4 | 1990–1991 |
| Kawasaki, JP | 3 | 1994–2009 |
| Shinjuku-ku, JP | 3 | 2004–2007 |