Inventor
Hirohiko Sagawa
Inventor
Kokubunji, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G09Bprimary
G09BEducational or demonstration appliances32%
G06FElectric digital data processing26%
G06TImage data processing or generation, in general10%
G06VImage or video recognition or understanding10%
G10LSpeech analysis techniques or speech synthesis6%
H04MTelephonic communication6%
H04NPictorial communication, e.g. television6%
G01CMeasuring distances, levels or bearings3%
PatentTitleYear
8,694,323'In-vehicle apparatus'20148,150,678'Spoken document retrieval system'20126,549,887'Apparatus capable of processing sign language information'20036,477,239'Sign language telephone device'20026,181,778'Chronological telephone system'20015,990,878'Sign language editing apparatus'19995,953,693'Sign language generation apparatus and sign language translation apparatus'19995,887,069'Sign recognition apparatus and method and sign translation system using same'19995,734,923'Apparatus for interactively editing and outputting sign language information using graphical user interface'19985,699,441'Continuous sign-language recognition apparatus and input apparatus'19975,659,764'Sign language generation apparatus and sign language translation apparatus'19975,544,050'Sign language learning system and method'19965,481,454'Sign language/word translation system'19965,473,705'Sign language translation system and method that includes analysis of dependence relationships between successive words'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2012Patents assigned to HITACHI LTD (13)· patent assignee history
1995–2014Based in Kokubunji, JP· patent location history
1999Based in Kodaira, JP· patent location history
2012–2014Patents assigned to SAGAWA HIROHIKO (2)· patent assignee history
2014Patents assigned to HATAOKA NOBUO (1)· patent assignee history
2014Patents assigned to HOMMA TAKESHI (1)· patent assignee history
2014Patents assigned to KOKUBO HIROAKI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 13 | 1995–2012 |
| SAGAWA HIROHIKOself | 2 | 2012–2014 |
| HATAOKA NOBUO | 1 | 2014 |
| HOMMA TAKESHI | 1 | 2014 |
| KOKUBO HIROAKI | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kokubunji, JP | 13 | 1995–2014 |
| Kodaira, JP | 1 | 1999 |