Inventor

Hirofumi Muramatsu

Inventor
Tokyo, JP

Overview

7→
Patents
2005–2017
Patent span
Physics
Primary field (CPC G)

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%

Career & 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
AssigneePatentsSpan
ROLAND CORP32013–2017
MURAMATSU HIROFUMIself22013–2014
OKI ELECTRIC IND CO LTD22005–2006
LAPIS SEMICONDUCTOR CO LTD12014
MORIOKA KENICHI12014
Locations
LocationPatentsSpan
Tokyo, JP32006–2014
Shizuoka, JP22015–2017
Hamamatsu, JP12013
Yamanashi, JP12005