Inventor
Kenji Yamakawa
Inventor
Saitama, JP
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters13%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them11%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
H10NElectric solid-state devices not otherwise provided for10%
H04NPictorial communication, e.g. television8%
H01LSemiconductor devices7%
H04MTelephonic communication7%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general6%
G02BOptical elements, systems or apparatus6%
H02NElectric machines not otherwise provided for4%
PatentTitleYear
10,010,909Piezoelectric element, acoustic generator, acoustic generation device, and electronic apparatus20189,883,289'Acoustic generator, acoustic generation device, and electronic device'20189,848,268Acoustic generator, acoustic generation device, and electronic apparatus20179,791,659'Imaging module and electronic device'20179,712,732'Imaging module, electronic device provided therewith, and imaging-module manufacturing method'20179,674,443'Imaging module, electronic device, and imaging-module manufacturing method'20179,609,196'Imaging module and electronic device'20179,590,162'Piezoelectric vibration component and portable terminal'20179,583,692'Piezoelectric vibration device and portable terminal using the same'20179,392,372'Acoustic generator, acoustic generation device, and electronic device'20169,318,688'Piezoelectric vibration element, piezoelectric vibration device, and portable terminal'20169,257,631'Piezoelectric vibration element, piezoelectric vibration device, and portable terminal'20169,119,003'Sound generator and sound-generating apparatus'20159,070,864'Piezoelectric vibration device and portable terminal using the same'20158,845,662'Vascular anastomosis device'20147,626,317'Piezoelectric oscillation element and piezoelectric oscillation component using the same'20097,212,222'Thermal head and thermal printer'20076,641,072'Paper magazine for a recording paper roll and recording paper roll'20036,357,686'Paper magazine for a recording paper roll and recording paper roll'20026,244,530'Paper magazine for recording paper roll and recording paper roll'20016,089,487'Paper magazine for a recording paper roll and recording paper roll'20006,084,624'Color thermal recording method and color thermal printer'20006,078,345'Paper transport device for thermal printer'20005,529,413'Protective sheet for recording sheets and printer in use therewith'19965,463,417'Bleaching method for thermosensitive recording medium'19955,382,965'Wax transfer type thermal printing method and thermal printer'19955,355,793'Method and apparatus for making a mimeographic printing plate'19945,297,878'Method of thermal wax transfer printing'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2003Patents assigned to FUJI PHOTO FILM CO LTD (11)· patent assignee history
1994–1995Based in Tokyo, JP· patent location history
1995–2017Based in Saitama, JP· patent location history
2007–2017Patents assigned to FUJIFILM CORP (6)· patent assignee history
2009–2018Patents assigned to KYOCERA CORP (10)· patent assignee history
2009–2018Based in Kirishima, JP· patent location history
2014–2017Patents assigned to YAMAKAWA KENJI (5)· patent assignee history
2014Based in Kanagawa, JP· patent location history
2015–2017Patents assigned to HAYASHI HARUMI (3)· patent assignee history
2015–2018Based in Kyoto, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJI PHOTO FILM CO LTD | 11 | 1994–2003 |
| KYOCERA CORP | 10 | 2009–2018 |
| FUJIFILM CORP | 6 | 2007–2017 |
| YAMAKAWA KENJIself | 5 | 2014–2017 |
| HAYASHI HARUMI | 3 | 2015–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 13 | 1995–2017 |
| Kyoto, JP | 6 | 2015–2018 |
| Kirishima, JP | 5 | 2009–2018 |
| Tokyo, JP | 3 | 1994–1995 |
| Kanagawa, JP | 1 | 2014 |