RT

Ryoichi Takayama

Sumitomo Electric Industries: 44 patents #214 of 21,551Top 1%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
MC Matsushit Electric Industrial Co.: 1 patents #13 of 293Top 5%
MC Minolta Co.: 1 patents #942 of 1,416Top 70%
📍 Suita, JP: #9 of 1,253 inventorsTop 1%
Overall (All Time): #49,563 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 1–25 of 53 patents

Patent #TitleCo-InventorsDate
8035460 Surface acoustic wave device, surface acoustic wave filter and antenna duplexer using the same, and electronic equipment using the same Hidekazu Nakanishi, Yukio Iwasaki, Yosuke Hamaoka, Hiroyuki Nakamura 2011-10-11
7498898 Surface acoustic wave filter, and saw duplexer Hidekazu Nakanishi, Yukio Iwasaki, Hiroyuki Nakamura 2009-03-03
7478558 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Eiji Fujii, Hideo Torii, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa 2009-01-20
7185540 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Hideo Torii, Eiji Fujii, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa 2007-03-06
7109828 Surface acoustic wave device, and mobile communication device and sensor both using same Shunichi Seki, Tetsuo Kawasaki, Hidekazu Nakanishi, Koji Hasegawa 2006-09-19
7083270 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Hideo Torii, Eiji Fujii, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa 2006-08-01
7033001 Piezoelectric element, ink jet head, angular velocity sensor, manufacturing method thereof, and ink jet type recording apparatus Eiji Fujii, Hideo Torii, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa 2006-04-25
7024738 Method for controlling a direction of polarization of a piezoelectric thin film Satoru Fujii, Isaku Kanno, Takeshi Kamada 2006-04-11
7001014 PIEZOELECTRIC THIN FILM AND METHOD FOR PREPARATION THEOF, AND PIEZOELECTRIC ELEMENT HAVING THE PIEZOELECTRIC THIN FILM, INK-JET HEAD USING THE PIEZOELECTRIC ELEMENT, AND INK-JET RECORDING DEVICE HAVING THE INK-JET HEAD Hideo Torii, Takeshi Kamada, Isaku Kanno 2006-02-21
6969157 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Atsushi Tomozawa, Eiji Fujii, Hideo Torii, Akiko Murata, Taku Hirasawa 2005-11-29
6909341 Surface acoustic wave filter utilizing a layer for preventing grain boundary diffusion Hidekazu Nakanishi, Tetsuo Kawasaki, Toru Sakuragawa, Yasuhiko Yokota 2005-06-21
6891449 Antenna duplexer Tetsuo Kawasaki, Yuki Satoh, Kozo Murakami, Toru Sakuragawa 2005-05-10
6886922 Liquid discharge head and manufacturing method thereof Taku Hirasawa, Akiko Murata, Atsushi Tomozawa, Eiji Fujii, Hideo Torii 2005-05-03
6759924 Multi-frequency antenna duplexer Toru Sakuragawa, Yuki Satoh, Kozo Murakami 2004-07-06
6688731 Piezoelectric thin film element, ink jet recording head using such a piezoelectric thin film element, and their manufacture methods Satoru Fujii, Isaku Kanno, Osamu Watanabe, Kenji Tomita, Shigeyuki Takao 2004-02-10
6554408 Fluid ejection device and process for the production thereof Katsumasa Miki, Masaya Nakatani, Isaku Kanno, Koji Nomura 2003-04-29
6475604 Thin film thermistor element and method for the fabrication of thin film thermistor element Eiji Fujii, Atsushi Tomozawa, Hideo Torii 2002-11-05
6472953 Band switching filter using a surface acoustic wave resonator and an antenna duplexer using the same Toru Sakuragawa, Yuki Sato, Katsuya Fujii, Kozo Murakami 2002-10-29
6361154 Ink-jet head with piezoelectric actuator Osamu Watanabe, Kenji Tomita, Isaku Kanno 2002-03-26
6347862 Ink-jet head Isaku Kanno, Satoru Fujii, Takeshi Kamada 2002-02-19
6341851 Ink jet recording apparatus including a pressure chamber and pressure applying means Yuji Takashima, Eiichiro Tanaka, Koji Ikeda, Osamu Kawasaki, Masayoshi Miura 2002-01-29
6326621 Infrared radiation detector and method of manufacturing the same Takeshi Kamada, Satoru Fujii, Atsushi Tomozawa, Isaku Kanno 2001-12-04
6263734 Piezoelectric acceleration sensor and method of detecting acceleration and manufacturing method thereof Satoru Fujii, Isaku Kanno, Takeshi Kamada 2001-07-24
6105225 Method of manufacturing a thin film sensor element Hideo Torii, Takeshi Kamada, Shigenori Hayashi, Takashi Hirao, Masumi Hattori 2000-08-22
6081182 Temperature sensor element and temperature sensor including the same Atsushi Tomozawa, Eiji Fujii, Hideo Torii 2000-06-27