Inventor
Hirofumi Muramatsu
Inventor
Tokyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing10%
G06KGraphical data reading10%
G06VImage or video recognition or understanding10%
G11BInformation storage based on relative movement between record carrier and transducer10%
G11CStatic stores10%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy10%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers10%
LOC1310%
LOC1710%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
PatentTitleYear
D0776190'Electronic musical instrument with keyboard'2017D0740237'Pedal switch'20158,885,895'Fingerprint authentication device and computer readable medium'20148,415,051'Battery storage structure for acoustic equipment'20137,885,720'Decoder for fast feed and rewind'20117,032,094'Method of controlling flash memory'20066,854,047'Data storage device and data transmission system using the same'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2006Patents assigned to OKI ELECTRIC IND CO LTD (2)· patent assignee history
2005Based in Yamanashi, JP· patent location history
2006–2014Based in Tokyo, JP· patent location history
2013–2017Patents assigned to ROLAND CORP (3)· patent assignee history
2013–2014Patents assigned to MURAMATSU HIROFUMI (2)· patent assignee history
2013Based in Hamamatsu, JP· patent location history
2014Patents assigned to LAPIS SEMICONDUCTOR CO LTD (1)· patent assignee history
2014Patents assigned to MORIOKA KENICHI (1)· patent assignee history
2015–2017Based in Shizuoka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROLAND CORP | 3 | 2013–2017 |
| MURAMATSU HIROFUMIself | 2 | 2013–2014 |
| OKI ELECTRIC IND CO LTD | 2 | 2005–2006 |
| LAPIS SEMICONDUCTOR CO LTD | 1 | 2014 |
| MORIOKA KENICHI | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 2006–2014 |
| Shizuoka, JP | 2 | 2015–2017 |
| Hamamatsu, JP | 1 | 2013 |
| Yamanashi, JP | 1 | 2005 |