Inventor
HITOSHI FUJIWARA
Inventor
JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography82%
F02CGas-turbine plants6%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants6%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers6%
PatentTitleYear
12,585,214Heating device, fixing device, drier, laminate processing apparatus, and image forming apparatus202612,572,098Pressure switching mechanism and image forming apparatus202612,554,217Pressure switching device, image forming apparatus, and pressure switching method202612,498,659Heating device, frame device, and image forming apparatus202512,498,656Fixing device and image forming apparatus202512,372,903Fixing device and image forming apparatus202512,339,604Fixing device and image forming apparatus including a pivot restrictor to restrict pivoting of a conductive member202512,117,748Fixing device and image forming apparatus incorporating same202411,966,179Fixing device and image forming apparatus incorporating same202411,947,295Heating device, fixing device, and image forming apparatus202411,886,134Heating device, fixing device, and image forming apparatus202411,874,620Fixing device and image forming apparatus incorporating same202411,543,765Fixing device and image forming apparatus incorporating same202311,454,910NIP formation member having a base, a thermal conductor, and a stabilizer, and fixing device and image forming apparatus using the same202211,408,346Fuel injector2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2026Patents assigned to FUJIWARA HITOSHI (14)· patent assignee history
2022–2026Patents assigned to RICOH CO LTD (14)· patent assignee history
2022–2026Based in JP· patent location history
2025–2026Patents assigned to FURUICHI YUUSUKE (7)· patent assignee history
2025–2026Patents assigned to IKEBUCHI YUTAKA (4)· patent assignee history
2025–2026Patents assigned to NANNO SHIGEO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJIWARA HITOSHIself | 14 | 2022–2026 |
| RICOH CO LTD | 14 | 2022–2026 |
| FURUICHI YUUSUKE | 7 | 2025–2026 |
| IKEBUCHI YUTAKA | 4 | 2025–2026 |
| NANNO SHIGEO | 4 | 2025–2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 15 | 2022–2026 |