Inventor
Nobuaki Tsuji
Inventor
Hamamatsu, JP
Overview
Patents· 44 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers22%
G03CPhotosensitive materials for photographic purposes12%
H03KPulse technique10%
H10DInorganic electric semiconductor devices10%
H03GControl of amplification5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
G01CMeasuring distances, levels or bearings4%
B81BMicrostructural devices or systems, e.g. micromechanical devices3%
H01LSemiconductor devices3%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%
PatentTitleYear
10,287,159MEMS device201910,175,045Vibrator drive circuit20199,764,943'MEMS structure'20178,823,343'Power amplifying circuit, DC-DC converter, peak holding circuit, and output voltage control circuit including the peak holding circuit'20148,653,803'Voltage generation circuit'20148,232,832'Voltage adder circuit and D/A converter circuit'20128,059,834'Automatic gain control circuit'20117,990,211'Class D amplifier circuit'20117,982,522'Semiconductor integrated circuit for realizing an amplifier having ringing reduction circuitry'20117,948,313'Class D amplifier circuit'20117,924,089'Offset voltage correction circuit and class D amplifier'20117,920,082'D/A converter circuit and digital input class-D amplifier'20117,912,112'Spectrum spreading circuit'20117,830,182'Comparator'20107,816,992'Offset voltage correction circuit and class D amplifier'20107,679,435'Digital input class-D amplifier'20107,341,819'Method of manufacture of photosensitive material packaging body and photosensitive material packaging body'20087,315,202'Pulse-width modulation amplifier and suppression of clipping therefor'20087,298,855'Volume circuit using resistive ladder circuits'20077,183,818'Triangular wave generating circuit adapted to class-D amplifier'20077,075,123'Semiconductor input protection circuit'20066,903,607'Operational amplifier'20056,903,577'Delay circuit'20056,894,320'Input protection circuit'20056,847,059'Semiconductor input protection circuit'20056,826,215'Laser diode driving circuit'20046,791,405'Triangular wave generating circuit used in a Class-D amplifier'20046,778,011'Pulse-width modulation circuit and power amplifier circuit'20046,608,505'Ouput buffer circuit'20036,448,856'Electronic volume circuit'20026,384,632'Buffer circuit'20026,291,835'Semiconductor device'20015,804,857'Semiconductor device with element window defined by closed loop conductor'19985,654,571'Semiconductor device'19975,591,570'Light-sensitive silver halide photographic emulsion, silver halide photographic light sensitive material and method for processing silver halide photographic light-sensitive material'19975,554,495'Silver halide photographic light sensitive material containing antistatic layer'1996H0001547'Silver halide photographic light-sensitive material for laser-beam-scanning use'19965,491,352'Semiconductor device having peripheral metal wiring'19965,391,920'Semiconductor device having peripheral metal wiring'19955,286,619'Silver halide photographic light-sensitive material'19945,231,656'Device for detecting film information'1993H0000674'Silver halide photographic light-sensitive material capable of super-rapid processing'19894,861,702'Rapidly processable silver halide photographic light-sensitive material and the processing thereof'19894,847,189'High speed processing silver halide photographic light-sensitive material'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1997Patents assigned to KONISHIROKU PHOTO IND (7)· patent assignee history
1989–1997Based in Hino, JP· patent location history
1989–2008Based in Hachioji, JP· patent location history
1995–2014Patents assigned to YAMAHA CORP (32)· patent assignee history
1995–2019Based in Hamamatsu, JP· patent location history
2003Based in Hamamatus, JP· patent location history
2011–2014Patents assigned to TSUJI NOBUAKI (4)· patent assignee history
2012–2014Patents assigned to MAEJIMA TOSHIO (2)· patent assignee history
2017–2019Patents assigned to MURATA MANUFACTURING CO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| YAMAHA CORP | 32 | 1995–2014 |
| KONISHIROKU PHOTO IND | 7 | 1989–1997 |
| TSUJI NOBUAKIself | 4 | 2011–2014 |
| MURATA MANUFACTURING CO | 3 | 2017–2019 |
| MAEJIMA TOSHIO | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hamamatsu, JP | 34 | 1995–2019 |
| Hino, JP | 6 | 1989–1997 |
| Hachioji, JP | 3 | 1989–2008 |
| Hamamatus, JP | 1 | 2003 |