Inventor
Keitaro Tsuboki
Inventor
Tokyo, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC14primary
LOC1470%
LOC1920%
LOC1610%
PatentTitleYear
D0507811'Ball point pen'2005D0504465'Cap for a writing instrument'2005D0459378'Electronic still camera'2002D0457515'Earphone'2002D0450713'Audio player'2001D0445103'Tape player'2001D0438527'Tape player'2001D0436103'Front portion of tape player'2001D0413593'Selecting device'1999D0410925'Audio disc player combined with radio receiver and tape recorder'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2002Patents assigned to SONY CORP (8)· patent assignee history
1999–2005Based in Tokyo, JP· patent location history
2005Patents assigned to PENTEL KK (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 8 | 1999–2002 |
| PENTEL KK | 2 | 2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 1999–2005 |