Inventor
Tomohiko Kamatani
Inventor
Hyogo, JP
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light15%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%
G01DMeasuring not specially adapted for a specific variable8%
G03GElectrography8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
H02JElectric power networks5%
H03KPulse technique5%
B41JTypewriters3%
G01RMeasuring electric variables3%
G06KGraphical data reading3%
PatentTitleYear
10,401,768Signal level, adjustment apparatus, phase detection apparatus, motor drive controller, conveyer, image forming apparatus, and signal level adjustment method201910,326,387Phase detecting device, motor system, image forming apparatus, conveyance device, and sensor level obtaining method20199,983,503Semiconductor laser driver and image forming apparatus incorporating same20189,882,242'Angle detecting device, motor drive controlling device, motor device and method of controlling an angle detecting device'20189,682,835'Phase detector, motor drive controller, motor apparatus, sheet feeder, and method of detecting phase'20179,515,587'Phase detector, motor drive controller, motor device, and method of detecting phase of rotor'20169,515,641'Voltage level detector, motor drive controller, motor apparatus, and method of detecting voltage level'20169,281,936'Phase detector, motor drive controller, motor device, and method of detecting phase of rotor'20168,872,453'Motor drive controller and control method'20148,866,421'Motor drive controller and control method'20148,860,346'Angle detection device, motor driving device, and image forming apparatus'20148,804,784'Semiconductor laser driving device and image forming apparatus having the semiconductor laser driving device'20148,755,419'Laser diode drive circuit'20148,654,166'Receiving device, driving unit, and image forming apparatus'20148,587,346'Driving circuit and electronic device using the same'20138,576,887'Semiconductor laser driving unit, optical scanner having semiconductor laser driving unit, and image forming apparatus'20138,576,886'Laser diode drive circuit and image forming apparatus incorporating same'20138,559,476'Semiconductor laser driver and image forming apparatus incorporating same'20138,526,474'Multi-beam laser power control circuit and image forming apparatus using the same'20138,483,250'Semiconductor laser driving device and image forming apparatus having the same'20138,248,140'Semiconductor device for detecting power supply voltage'20127,940,036'Voltage comparison circuit, and semiconductor integrated circuit and electronic device having the same'20117,856,039'Semiconductor device and semiconductor laser driving device'20107,693,196'Semiconductor laser driving unit and image forming apparatus having the same'20107,679,296'Light emitting diode drive circuit'20107,671,564'Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery'20107,649,343'Charge control circuit, charging device, and connection checking method'20107,592,855'Trimming circuit and semiconductor device'20097,573,922'Semiconductor laser driving unit and image forming apparatus having the same'20097,479,765'Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2010Patents assigned to RICOH KK (7)· patent assignee history
2009–2014Based in Hyogo, JP· patent location history
2009–2014Based in Kawanishi, JP· patent location history
2010–2019Patents assigned to RICOH CO LTD (23)· patent assignee history
2012–2019Patents assigned to KAMATANI TOMOHIKO (21)· patent assignee history
2013–2018Patents assigned to FURUSE KATSUHISA (5)· patent assignee history
2014Patents assigned to SHIMIZU FUMIHIRO (3)· patent assignee history
2016–2019Based in Osaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 23 | 2010–2019 |
| KAMATANI TOMOHIKOself | 21 | 2012–2019 |
| RICOH KK | 7 | 2009–2010 |
| FURUSE KATSUHISA | 5 | 2013–2018 |
| SHIMIZU FUMIHIRO | 3 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hyogo, JP | 16 | 2009–2014 |
| Osaka, JP | 8 | 2016–2019 |
| Kawanishi, JP | 6 | 2009–2014 |