KS

Koji Sumi

SE Seiko Epson: 73 patents #72 of 7,774Top 1%
DI Daikin Industries: 2 patents #1,262 of 2,957Top 45%
TC Toho Kasei Co.: 1 patents #17 of 37Top 50%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
TI Toray Industries: 1 patents #2,000 of 3,690Top 55%
SJ Seiko Epson Corporation, A Japanese: 1 patents #1 of 10Top 10%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
Overall (All Time): #22,969 of 4,157,543Top 1%
79
Patents All Time

Issued Patents All Time

Showing 1–25 of 79 patents

Patent #TitleCo-InventorsDate
12219876 Method for producing piezoelectric actuator Harunobu KOIKE, Takanori Aimono, Masao Nakayama, Motoki Takabe, Yasuhiro ITAYAMA +1 more 2025-02-04
11731417 Liquid ejecting apparatus and method of driving liquid ejecting head Toshihiro Shimizu 2023-08-22
11571891 Liquid discharge head Harunobu KOIKE, Masao Nakayama 2023-02-07
11485137 Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus Toshihiro Shimizu 2022-11-01
11417828 Piezoelectric element, piezoelectric element application device, and method of manufacturing piezoelectric element Tomohiro Sakai, Kazuya Kitada 2022-08-16
11374162 Piezoelectric element, method for manufacturing the same, and piezoelectric element-applied device Tomokazu Kobayashi, Tomohiro Sakai, Kazuya Kitada, Koichi Morozumi, Tsutomu Asakawa 2022-06-28
11173715 Liquid discharge head and printer Harunobu KOIKE, Takanori Aimono, Masao Nakayama, Motoki Takabe, Yasuhiro ITAYAMA 2021-11-16
11135844 Liquid discharge head and printer Motoki Takabe, Yasuhiro ITAYAMA 2021-10-05
10937942 Piezoelectric element and piezoelectric element-applied device Kazuya Kitada, Tomohiro Sakai, Toshiaki Takahashi, Tsutomu Asakawa 2021-03-02
10608165 Piezoelectric element and liquid ejecting head Tomohiro Sakai, Koichi Morozumi, Kazuya Kitada, Harunobu KOIKE 2020-03-31
10600951 Vibrating plate structure and piezoelectric element application device Eiji OSAWA 2020-03-24
10580958 Piezoelectric element and liquid ejection head Harunobu KOIKE, Toshiaki Takahashi, Koichi Morozumi 2020-03-03
10427981 Piezoelectric material, method of manufacturing the same, piezoelectric element, and piezoelectric element application device Kazuya Kitada, Tomohiro Sakai, Yasuaki Hamada, Tetsuya Isshiki, Satoshi Kimura +2 more 2019-10-01
10355196 Piezoelectric element, piezoelectric element application device, and method of manufacturing piezoelectric element Tomohiro Sakai, Kazuya Kitada 2019-07-16
10297742 Piezoelectric element and device including the same Tomohiro Sakai, Tetsuya Isshiki, Toshiaki Takahashi, Kazuya Kitada 2019-05-21
10243137 Piezoelectric element and piezoelectric element applied device Tomohiro Sakai, Tetsuya Isshiki, Toshiaki Takahashi, Tomokazu Kobayashi, Kazuya Kitada 2019-03-26
10186652 Piezoelectric element and piezoelectric element applied device Tomohiro Sakai, Tetsuya Isshiki, Toshiaki Takahashi, Tomokazu Kobayashi, Kazuya Kitada 2019-01-22
10181555 Piezoelectric element and piezoelectric element applied device Kazuya Kitada, Tomohiro Sakai, Toshiaki Takahashi 2019-01-15
10059101 Liquid ejection head and liquid ejection apparatus Eiju Hirai, Shiro Yazaki, Motoki Takabe, Jiro Kato, Hiroshi Ito +4 more 2018-08-28
9498952 Liquid ejection head and liquid ejection apparatus Eiju Hirai, Shiro Yazaki, Motoki Takabe, Jiro Kato, Hiroshi Ito +4 more 2016-11-22
9324933 Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator Kazuya Kitada, Tomohiro Sakai, Yasuaki Hamada, Tetsuya Isshiki, Satoshi Kimura +2 more 2016-04-26
9276193 Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator Kazuya Kitada, Tomohiro Sakai, Yasuaki Hamada, Tetsuya Isshiki, Satoshi Kimura +2 more 2016-03-01
9190601 Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator Kazuya Kitada, Tomohiro Sakai, Yasuaki Hamada, Tetsuya Isshiki, Satoshi Kimura +2 more 2015-11-17
9144977 Liquid ejection head and liquid ejection apparatus Eiju Hirai, Shiro Yazaki, Motoki Takabe, Jiro Kato, Hiroshi Ito +4 more 2015-09-29
8764167 Method of manufacturing liquid ejecting head, liquid ejecting apparatus, and method of manufacturing piezoelectric element Kazuya Kitada, Xiaoxing Wang 2014-07-01