Inventor
Takehiko Yokosuka
Inventor
Aichi, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B43Kprimary
B43KImplements for writing or drawing60%
A45DHairdressing or shaving equipment10%
A46BBrushes10%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
H01JElectric discharge tubes or discharge lamps10%
PatentTitleYear
11,011,348Scanning electron microscope and sample observation method using scanning electron microscope20216,076,987'Ballpoint pen and cap therefor'20006,010,269'Writing implement'20005,290,117'Penpoint assembly and writing instrument employing the same'19944,968,169'Penpoint assembly and writing instrument employing the same'19904,913,175'Liquid-applying tip assembly'19904,457,644'Ball-point pen tip'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2000Patents assigned to PILOT INK CO LTD (6)· patent assignee history
1984–2000Based in Aichi, JP· patent location history
2021Patents assigned to HITACHI HIGH TECH CORP (1)· patent assignee history
2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PILOT INK CO LTD | 6 | 1984–2000 |
| HITACHI HIGH TECH CORP | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Aichi, JP | 6 | 1984–2000 |
| Tokyo, JP | 1 | 2021 |