Inventor
Takashi Shimokawa
Inventor
Sagamihara, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G08Bprimary
G08BSignalling systems, e.g. personal calling systems43%
A62CFire-fighting14%
F16CShafts14%
G11BInformation storage based on relative movement between record carrier and transducer14%
H01JElectric discharge tubes or discharge lamps14%
PatentTitleYear
8,824,105'Pivot bearing and magnetic recording apparatus using the same'20148,441,359'Fire distinguishing device'20135,475,363'Disaster prevention monitoring apparatus'19955,178,570'Manufacturing method of cathode ray tube'19935,065,150'Monitoring apparatus for disaster prevention'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2013Patents assigned to HOCHIKI CO (3)· patent assignee history
1991–2013Based in Sagamihara, JP· patent location history
1993Patents assigned to HITACHI LTD (1)· patent assignee history
1993Based in Sakura, JP· patent location history
1995Based in Tokyo, JP· patent location history
2013–2014Patents assigned to SHIMOKAWA TAKASHI (2)· patent assignee history
2013Patents assigned to ANDO KUMIKO (1)· patent assignee history
2013Patents assigned to ASANO ISAO (1)· patent assignee history
2014Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOCHIKI CO | 3 | 1991–2013 |
| SHIMOKAWA TAKASHIself | 2 | 2013–2014 |
| ANDO KUMIKO | 1 | 2013 |
| ASANO ISAO | 1 | 2013 |
| HITACHI LTD | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sagamihara, JP | 2 | 1991–2013 |
| Kanagawa, JP | 1 | 2014 |
| Tokyo, JP | 1 | 1995 |
| Sakura, JP | 1 | 1993 |