RI

Ryoichi Ichikawa

NC Nihon Dempa Kogyo Co.: 23 patents #7 of 296Top 3%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
JE Jeol: 1 patents #309 of 669Top 50%
ML Mitsubishi Petrochemical Company Limited: 1 patents #291 of 670Top 45%
TS Toshiba Energy Systems & Solutions: 1 patents #268 of 569Top 50%
📍 Hatsukaichi, JP: #4 of 139 inventorsTop 3%
Overall (All Time): #111,798 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDate
12033100 Prediction device, prediction method, and non-transitory computer readable medium Hiromasa Shin, Yoshiaki Shiga, Ichiro Toyoshima 2024-07-09
8966980 External force detecting device and external force detecting sensor Mitsuaki Koyama, Takeru Mutoh, Hiroki Iwai, Yoshiaki Amano 2015-03-03
8919201 Acceleration measuring apparatus Mitsuaki Koyama, Takeru Mutoh, Hiroki Iwai 2014-12-30
8890391 External force detection apparatus and external force detection sensor Mitsuaki Koyama, Takeru Mutoh, Hiroki Iwai 2014-11-18
8823247 Piezoelectric vibrating devices including respective packages in which castellations include respective connecting electrodes Yoshiaki Amano 2014-09-02
8729775 Piezoelectric vibrating devices and methods for manufacturing same Mitoshi Umeki, Yoshiaki Amano, Kenji Kamezawa, Kenichi Kikuchi, Noritsugu Matsukura 2014-05-20
8618721 Method of manufacturing the piezoelectric device and the same Yoshiaki Amano, Kenji Kamezawa 2013-12-31
8610338 Tuning-fork type piezoelectric vibrating piece with enhanced frequency adjustment and piezoelectric device incorporating same Hiroki Iwai, Yoshiaki Amano 2013-12-17
8549717 Methods for manufacturing piezoelectric devices 2013-10-08
8536835 Supply and demand control apparatus for electric power system, and storage medium storing supply and demand control program Mari Tanaka, Takenori Kobayashi, Koji TOBA, Yoshihiro Ogita, Akinori Nishi 2013-09-17
8531092 Surface-mountable piezoelectric devices including eutectic-bonded packages Shuichi Mizusawa 2013-09-10
8471528 Secondary battery controlling apparatus and controlling method Koji TOBA, Mari Tanaka, Takenori Kobayashi, Yoshihiro Ogita, Akinori Nishi 2013-06-25
8429800 Methods for manufacturing piezoelectric vibrating pieces Hiroshi Kawahara 2013-04-30
8405284 Impact-resistant piezoelectric devices 2013-03-26
8382995 Piezoelectric devices and methods for manufacturing same Mitoshi Umeki 2013-02-26
8347719 Piezoelectric frame and piezoelectric device incorporating same 2013-01-08
8303755 Manufacturing methods of piezoelectric devices Mitoshi Umeki 2012-11-06
8278798 Crystal device 2012-10-02
8227958 Piezoelectric devices and methods for manufacturing same Takahiro Inoue, Takefumi Saito, Mitoshi Umeki 2012-07-24
8154178 Piezoelectric frame surrounding a piezoelectric vibrating piece and package with exhaust channel Mitoshi Umeki 2012-04-10
8093787 Tuning-fork-type piezoelectric vibrating piece with root portions having tapered surfaces in the thickness direction 2012-01-10
8018126 Piezoelectric devices exhibiting reduced CI degradation Mitoshi Umeki, Takefumi Saito 2011-09-13
7902729 Piezoelectric vibrating pieces and piezoelectric devices Shingo Kawanishi, Yu Iwai 2011-03-08
7888850 Tuning-fork type piezoelectric unit 2011-02-15
7859173 Tuning fork type quartz crystal resonator 2010-12-28