SK

Seiji Kai

MC Murata Manufacturing Co.: 20 patents #322 of 5,295Top 7%
SC Sanyo Electric Co.: 4 patents #1,493 of 6,347Top 25%
OC Oki Electric Industry Co.: 2 patents #947 of 2,807Top 35%
NL Nippon Sheet Glass Company, Limited: 1 patents #482 of 836Top 60%
Overall (All Time): #143,102 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
12431860 Acoustic wave device Hisashi Yamazaki, Takeshi Nakao 2025-09-30
12413206 Acoustic wave device Hisashi Yamazaki, Takeshi Nakao 2025-09-09
11626851 Acoustic wave device, high-frequency front end circuit, communication device, and method for manufacturing acoustic wave device Yutaka Kishimoto, Makoto Sawamura, Yuzo Kishi 2023-04-11
11588460 Elastic wave device manufacturing method, elastic wave device, radio-frequency front-end circuit, and communication device Makoto Sawamura 2023-02-21
11539343 Acoustic wave device, high-frequency front-end circuit, and communication device Yuzo Kishi, Yutaka Kishimoto, Makoto Sawamura 2022-12-27
11245380 Acoustic wave device, high-frequency front-end circuit, and communication device Makoto Sawamura, Yutaka Kishimoto, Yuzo Kishi 2022-02-08
10958240 Elastic wave device Masahiro Fukushima, Takuya Koyanagi 2021-03-23
10862455 Elastic wave device Tsutomu Takai, Atsushi Tanaka 2020-12-08
10707830 Elastic wave device and method for manufacturing the same Taku Kikuchi, Motoji TSUDA, Mitsuyoshi Hira 2020-07-07
10659001 Elastic wave device Koji Yamamoto, Tsutomu Takai, Hisashi Yamazaki, Yuji Miwa, Takashi Yamane 2020-05-19
10659002 Elastic wave device Koji Yamamoto, Tsutomu Takai, Hisashi Yamazaki, Yuji Miwa, Takashi Yamane +2 more 2020-05-19
10644669 Elastic wave device Mitsuyoshi Hira 2020-05-05
10637432 Elastic wave device 2020-04-28
10622965 Surface acoustic wave device assembly Toru Takeshita, Takashi Naka, Motoji TSUDA, Mitsuyoshi Hira 2020-04-14
10374142 Surface acoustic wave device and manufacturing method therefor Daisuke Ajima 2019-08-06
10320355 Method of manufacturing elastic wave device Mitsuyoshi Hira 2019-06-11
10243536 Elastic wave device and manufacturing method thereof Shin Saijo, Hisashi Yamazaki, Koji Yamamoto, Munehisa WATANABE 2019-03-26
10148245 Elastic wave device 2018-12-04
9876484 Elastic wave device with first and second support layers providing a hollow path Mitsuyoshi Hira 2018-01-23
9271400 Electronic component and manufacturing method therefor Shintaro NAKATANI, Mitsuyoshi Hira, Takao Mukai, Hisashi Yamazaki 2016-02-23
7459327 Method for manufacturing micro lenses including underlayer film and lens film etching steps Ryouji Matsui, Tetsuya Yamada, Tsutomu Imai, Kazuyuki Takegawa 2008-12-02
7348133 Method of manufacturing solid-state image sensing device Isamu Tomizawa, Kouji Yagi 2008-03-25
7138670 Semiconductor device for use in a solid state imaging device Tetsuya Miwa, Tsutomu Imai, Takayuki Kaida 2006-11-21
6995915 Manufacturing method of micro-lens, manufacturing method of solid-state image pickup device and solid-state image pickup device Kazuyuki Takegawa, Ryoji Matsui, Tetsuya Yamada, Tsutomu Imai, Yuko Tanaka 2006-02-07
6785441 Optical fiber collimator Ikuto Ooyama, Takashi Fukuzawa 2004-08-31