Inventor
Mitsuyo Matsumoto
Inventor
Ibaraki, JP
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography81%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein13%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
PatentTitleYear
8,691,484'Toner and method for producing the same, toner container, developer, image forming apparatus and process cartridge'20148,435,709'Toner for developing latent electrostatic image, process cartridge and image forming method'20138,309,290'Toner and method of manufacturing the same'20128,216,755'Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method'20128,139,984'Image forming method and apparatus'20128,110,330'Toner, developer, toner container, process cartridge, image forming method, and image forming apparatus'20128,039,185'Toner for developing a latent electrostatic image, method for producing the same, image-forming apparatus and process cartridge using the same'20118,012,658'Toner for developing electrostatic image, and image forming apparatus and process cartridge using the toner'20117,903,998'Image forming apparatus'20117,867,685'Image forming method and apparatus'20117,829,254'Non-magnetic toner, image forming apparatus and process cartridge'20107,709,171'Charge control agent, toner and toner producing method'20106,964,834'Photosensitive member having layer containing fluorine resin particles and resin fine particles and image-forming method and apparatus using same'20056,900,469'Liquid crystal display element'20056,812,977'Liquid crystal element'20046,416,826'Liquid crystal display element'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Based in Osaka, JP· patent location history
2004–2014Based in Ibaraki, JP· patent location history
2011–2014Patents assigned to RICOH CO LTD (10)· patent assignee history
2012–2014Patents assigned to ISHIKAWA YOSHIMICHI (6)· patent assignee history
2012–2014Patents assigned to KADOTA TAKUYA (6)· patent assignee history
2012–2014Patents assigned to KUROSE KATSUNORI (6)· patent assignee history
2012–2014Patents assigned to MATSUMOTO MITSUYO (6)· patent assignee history
2012Based in Ibaragi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 10 | 2011–2014 |
| ISHIKAWA YOSHIMICHI | 6 | 2012–2014 |
| KADOTA TAKUYA | 6 | 2012–2014 |
| KUROSE KATSUNORI | 6 | 2012–2014 |
| MATSUMOTO MITSUYOself | 6 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 14 | 2004–2014 |
| Ibaragi, JP | 1 | 2012 |
| Osaka, JP | 1 | 2002 |