Inventor
Ryo Iwai
Inventor
Otake, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography16%
C01GCompounds containing metals not covered by subclasses c01d or c01f13%
Y10TTechnical subjects covered by former us classification13%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds9%
H01FMagnets9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B82YSpecific uses or applications of nanostructures3%
C01BNon-metallic elements3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties3%
PatentTitleYear
9,285,698'Black magnetic iron oxide particles, magnetic carrier for electrophotographic developer and two-component developer'20169,030,168'Power conversion device, power generation system and charge and discharge control method'20158,545,713'Black magnetic iron oxide particles'20137,597,958'Black magnetic iron oxide particles having a specific dissolution of sulfur element'20097,572,505'Black magnetic iron oxide particles having high breakdown voltage'20097,144,626'Magnetic iron oxide particles and magnetic toner using the same'20065,029,078'Program loading method with relocation address'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2016Patents assigned to TODA KOGYO CORP (5)· patent assignee history
2006Based in Kure, JP· patent location history
2009–2016Based in Otake, JP· patent location history
2009Based in Ohtake, JP· patent location history
2013–2016Patents assigned to IWAI RYO (3)· patent assignee history
2013–2016Patents assigned to UCHIDA NAOKI (2)· patent assignee history
2013Based in Hiroshima, JP· patent location history
2015Patents assigned to EGUCHI MASAKI (1)· patent assignee history
2015Based in Osaka, JP· patent location history
2016Patents assigned to AOKI KOSO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TODA KOGYO CORP | 5 | 2006–2016 |
| IWAI RYOself | 3 | 2013–2016 |
| UCHIDA NAOKI | 2 | 2013–2016 |
| AOKI KOSO | 1 | 2016 |
| EGUCHI MASAKI | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Otake, JP | 2 | 2009–2016 |
| Osaka, JP | 1 | 2015 |
| Hiroshima, JP | 1 | 2013 |
| Ohtake, JP | 1 | 2009 |
| Kure, JP | 1 | 2006 |