Inventor
Hisashi Yajima
Inventor
Tsukuba, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines23%
H01FMagnets15%
F15BSystems acting by means of fluids in general11%
G10LSpeech analysis techniques or speech synthesis6%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling4%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding4%
F16FSprings4%
F16KValves4%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters4%
LOC154%
PatentTitleYear
10,697,477Servo valve202010,195,722Magnet chuck20199,905,346'Magnet chuck'20188,994,234'Linear actuator'20158,497,754'Electromagnetic actuator'20138,421,564'Electromagnetic actuator'20138,174,344'Linear electromagnetic actuator'2012D0635165'Linear electromagnetic actuator'20117,770,700'Brake apparatus for linear motor and method for positioning movable section of linear motor'20107,683,749'Linear electromagnetic actuator'20107,493,847'Fluid pressure cylinder with position detecting device'20097,453,172'Linear slide apparatus'2008D0542816'Linear electromagnetic actuator'20077,210,394'Method and apparatus for controlling air cylinder'20077,116,016'Linear actuator capable of low-speed driving'20067,065,099'Digital circuit multiplication equipment'20067,031,912'Speech coding apparatus capable of implementing acceptable in-channel transmission of non-speech signals'20066,819,209'Magnetic damper and actuator having the same'20046,786,237'Air servo valve'20046,674,186'Linear motor'20046,667,677'Magnet movable electromagnetic actuator'20036,559,746'Thrust controllable actuator'20036,484,139'Voice frequency-band encoder having separate quantizing units for voice and non-voice encoding'20025,909,068'Vibration generating device'19995,873,058'Voice coding-and-transmission system with silent period elimination'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2006Patents assigned to MITSUBISHI ELECTRIC CORP (4)· patent assignee history
1999–2006Based in Tokyo, JP· patent location history
1999Based in Nagano, JP· patent location history
2003–2020Patents assigned to SMC CORP (13)· patent assignee history
2003–2020Based in Tsukuba, JP· patent location history
2004–2015Patents assigned to SMC KK (7)· patent assignee history
2006–2012Based in Ibaraki, JP· patent location history
2009–2011Based in Tsukubamirai, JP· patent location history
2012–2015Patents assigned to YAJIMA HISASHI (3)· patent assignee history
2012–2013Patents assigned to FUJIWARA NOBUHIRO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SMC CORP | 13 | 2003–2020 |
| SMC KK | 7 | 2004–2015 |
| MITSUBISHI ELECTRIC CORP | 4 | 1999–2006 |
| YAJIMA HISASHIself | 3 | 2012–2015 |
| FUJIWARA NOBUHIRO | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsukuba, JP | 15 | 2003–2020 |
| Tokyo, JP | 4 | 1999–2006 |
| Ibaraki, JP | 3 | 2006–2012 |
| Tsukubamirai, JP | 2 | 2009–2011 |
| Nagano, JP | 1 | 1999 |