Inventor
Shuuho Yokokawa
Inventor
Ibaraki, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography43%
G02BOptical elements, systems or apparatus14%
G06KGraphical data reading14%
H04NPictorial communication, e.g. television14%
B41JTypewriters7%
G11BInformation storage based on relative movement between record carrier and transducer7%
PatentTitleYear
5,818,496'Exposure device of electrophotographic apparatus with optical path position deciding device'19985,578,819'Optical recorder having a signal separation circuit and a FIFO memory circuit'19965,572,290'Electrophotographic printing system including a plurality of electrophotographic printers having adjustable printing speeds'19965,545,840'Developing device in electrophotographic apparatus including developing poll configuration while stably carries developer'19965,516,982'Developing apparatus having developer regulating member'19965,453,820'Developing device having a developer mixing chamber for use in electrophotographic apparatus'19955,402,409'Optical recording apparatus and method for adding information in a sub-scanning direction and for deflecting a light beam to an optimum sub-scanning recording position'19955,359,394'Foreign matter removing mechanism for electrophotographic printer'19945,359,396'Toner density detection method for electrophotographic apparatus'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–1998Patents assigned to HITACHI KOKI KK (9)· patent assignee history
1994–1998Based in Ibaraki, JP· patent location history
1995Based in Katsuta, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI KOKI KK | 9 | 1994–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 8 | 1994–1998 |
| Katsuta, JP | 1 | 1995 |