Inventor
Shinichi Akatsu
Inventor
Kanagawa, JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography75%
H04NPictorial communication, e.g. television18%
B41JTypewriters4%
G06KGraphical data reading4%
PatentTitleYear
10,948,864Image density correction for an image forming apparatus202110,620,578Image forming apparatus for correcting density unevenness20209,565,319'Image forming apparatus having an optical sensor for converting a toner adhesion amount and image forming method'20179,535,376'Image forming apparatus that switches transfer bias based on detected environment condition'20179,436,135'Toner pattern density correction in an image forming apparatus'20169,152,896'Image forming apparatus and image forming method'20159,141,059'Image forming apparatus'20159,128,402'Image forming apparatus capable of effectively preventing image density fluctuation'20158,983,320'Image forming apparatus'20158,099,005'Image forming apparatus'20128,045,871'Image forming apparatus and image forming method on measured physical quantity'20118,019,239'Device and method for detecting life of organic photoreceptor and image forming apparatus'20117,925,174'Image forming apparatus'20117,917,045'Image forming apparatus and image forming method'20117,792,441'Image formation apparatus'20107,245,841'Electrophotographic apparatus'20076,738,586'Print control method of electrophotograph and image formation apparatus with potential sensor using the method'20046,684,036'Image forming apparatus'20046,556,229'Electrophotographic apparatus having a fringe development preventing mechanism'20036,271,874'Electrophotographic printer having an image memory, a horizontal scanning fringe correction exposure determining section, a vertical scanning fringe correction exposure determining section, and a switch'20016,131,000'Electrophotographic printing apparatus using electric potential dividing development'20006,061,534'Two-color image forming apparatus that prevents fringe development'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2012Based in Ibaraki, JP· patent location history
2000Based in Naka-machi, JP· patent location history
2004–2011Based in Hitachinaka, JP· patent location history
2010Based in Tokyo, JP· patent location history
2011–2021Patents assigned to RICOH CO LTD (13)· patent assignee history
2012–2021Patents assigned to AKATSU SHINICHI (10)· patent assignee history
2015–2020Patents assigned to MUTO TETSUYA (8)· patent assignee history
2015–2017Patents assigned to UEMATSU YUUICHIROH (7)· patent assignee history
2015–2017Patents assigned to GOTOH KEITA (6)· patent assignee history
2015–2021Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 13 | 2011–2021 |
| AKATSU SHINICHIself | 10 | 2012–2021 |
| MUTO TETSUYA | 8 | 2015–2020 |
| UEMATSU YUUICHIROH | 7 | 2015–2017 |
| GOTOH KEITA | 6 | 2015–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 9 | 2015–2021 |
| Ibaraki, JP | 9 | 2000–2012 |
| Hitachinaka, JP | 2 | 2004–2011 |
| Tokyo, JP | 1 | 2010 |
| Naka-machi, JP | 1 | 2000 |