Inventor
Yoshinobu Takeyama
Inventor
Kanagawa, JP
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography33%
H04NPictorial communication, e.g. television31%
G06KGraphical data reading16%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
B29CShaping or joining of plastics2%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering2%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%
D01GPreliminary treatment of fibres, e.g. for spinning2%
G01BMeasuring length, thickness or similar linear dimensions2%
G05BControl or regulating systems in general2%
PatentTitleYear
11,036,203Fabrication system, fabrication estimation system, information processing apparatus, fabricating apparatus, fabricating method, and recording medium20219,110,425'Sheet binding device and image forming apparatus incorporating same'20158,570,555'Image forming apparatus with an identification control unit having an identification signal line, a data line, and a period signal line'20138,190,038'Image formation apparatus capable of reducing the number of output signal lines'20128,102,550'Image-forming apparatus utilizing reduced signal lines'20127,725,045'Image forming apparatus to reduce a number of signal lines'20107,656,420'Controlling timing for starting image formation'20107,583,281'Image forming apparatus'20097,515,857'Image forming apparatus'20097,502,584'Image forming apparatus sensing displacement of an intermediate image transfer body'20097,499,066'Image forming apparatus with improved capability of image superposition'20097,450,138'Controlling timing for starting image formation'20087,247,840'Image forming apparatus, and method of correcting timing for generating laser beams'20076,919,911'Image forming apparatus'20056,891,554'Method and device for writing control and image forming device'20056,292,641'Image forming apparatus selectively operating one of a plurality of developing units and a method for controlling a switching operation for the developing units'20016,263,178'Method of applying a bias voltage for image development and method of switching the bias voltage in an image forming apparatus'20016,256,461'Image forming apparatus with an intermediate transfer body including reference markers for controlling the same'20016,222,566'Image formation apparatus and method thereof'20016,157,797'Image forming apparatus with integrated rotatable image carrier and writing device and method of assembling the same'20005,294,944'Color image forming apparatus having means for properly superimposing image colors on each other'19945,258,780'Beam recorder forming low density dots'19935,122,678'Image clock signal generating system with initial phase matching means in phase-locked loop'19925,095,315'Multipoint synchronization optical writing apparatus'19925,059,987'Synchronizing signal generating system'19914,962,431'Synchronizing signal generating system for laser scanner'19904,888,777'Semiconductor laser control apparatus'19894,837,588'Synchronizing signal generating system for laser scanner'19894,835,780'Semiconductor laser output control circuit'19893,999,249'Driving method and apparatus for a tandem carding machine'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Based in Obu, JP· patent location history
1989–2010Patents assigned to RICOH KK (24)· patent assignee history
1989–2013Based in Kawasaki, JP· patent location history
1989–2007Based in Tokyo, JP· patent location history
2000–2021Based in Kanagawa, JP· patent location history
2012–2021Patents assigned to RICOH CO LTD (5)· patent assignee history
2012–2021Patents assigned to TAKEYAMA YOSHINOBU (5)· patent assignee history
2015Patents assigned to HASHIMOTO TAKASHI (1)· patent assignee history
2021Patents assigned to ITO YOICHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 24 | 1989–2010 |
| RICOH CO LTD | 5 | 2012–2021 |
| TAKEYAMA YOSHINOBUself | 5 | 2012–2021 |
| HASHIMOTO TAKASHI | 1 | 2015 |
| ITO YOICHI | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 14 | 2000–2021 |
| Kawasaki, JP | 12 | 1989–2013 |
| Tokyo, JP | 3 | 1989–2007 |
| Obu, JP | 1 | 1976 |