Inventor
Masao Ichiyanagi
Inventor
Ama-gun, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B26Bprimary
B26BHand-held cutting tools not otherwise provided for33%
G03GElectrography22%
A61BDiagnosis11%
B25GHandles for hand implements11%
G02BOptical elements, systems or apparatus11%
LOC2811%
PatentTitleYear
10,871,604Display device and image forming apparatus202010,474,090Image forming apparatus20199,989,916Image forming apparatus having coupling structure between cartridge and driver unit20188,898,910'Cutter'2014D0379675'Safety razor cartridge'19975,560,105'Replaceable blade cartridge for razor'19965,493,778'Razor unit'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2014Patents assigned to FEATHER SAFETY RAZOR CO LTD (4)· patent assignee history
1996–1997Based in Seki, JP· patent location history
2014Patents assigned to ICHIYANAGI MASAO (1)· patent assignee history
2014Patents assigned to TAKAHASHI AKIRA (1)· patent assignee history
2014Based in Gifu, JP· patent location history
2018–2020Patents assigned to BROTHER IND LTD (3)· patent assignee history
2018–2020Based in Ama-gun, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FEATHER SAFETY RAZOR CO LTD | 4 | 1996–2014 |
| BROTHER IND LTD | 3 | 2018–2020 |
| ICHIYANAGI MASAOself | 1 | 2014 |
| TAKAHASHI AKIRA | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ama-gun, JP | 3 | 2018–2020 |
| Seki, JP | 3 | 1996–1997 |
| Gifu, JP | 1 | 2014 |