KE

Katsumi Eikyu

RE Renesas Electronics: 13 patents #207 of 4,529Top 5%
Mitsubishi Electric: 6 patents #4,940 of 25,717Top 20%
RT Renesas Technology: 2 patents #1,374 of 3,337Top 45%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #202,965 of 4,157,543Top 5%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12402368 Semiconductor device and method of manufacturing the same Yuta NABUCHI, Atsushi Sakai, Akihiro Shimomura, Satoru TOKUDA 2025-08-26
12159934 Semiconductor device Atsushi Sakai, Yotaro GOTO 2024-12-03
12125905 Semiconductor device Yoshinori Kaya, Akihiro Shimomura, Hiroshi Yanagigawa, Kazuhisa Mori 2024-10-22
11876127 Semiconductor device and method of manufacturing the same Tomohiro Imai, Yoshito Nakazawa 2024-01-16
11646376 Semiconductor device and method of manufacturing the same Eiji Tsukuda 2023-05-09
11557648 Semiconductor device and method of manufacturing the same Hiroshi Yanagigawa, Masami Sawada, Akihiro Shimomura, Kazuhisa Mori 2023-01-17
11527632 Semiconductor device and method of manufacturing the same Yotaro GOTO, Yoshihiro Nomura 2022-12-13
11362207 Semiconductor device Atsushi Sakai, Satoru TOKUDA, Ryuuji Umemoto, Hiroshi Yanagigawa 2022-06-14
10923422 Semiconductor device Fumihito Ota, Takashi Ipposhi 2021-02-16
10861786 Semiconductor device having a multilayer structure Yoshikazu Nagamura, Takashi Ipposhi 2020-12-08
10121894 Semiconductor device and method of manufacturing the same Atsushi Sakai 2018-11-06
9755094 Imaging device Atsushi Sakai 2017-09-05
9437644 Semiconductor device and method of manufacturing same Atsushi Sakai, Hiroyuki ARIE 2016-09-06
6950369 Magnetic memory device capable of passing bidirectional currents through the bit lines Tatsuya Kunikiyo 2005-09-27
6894520 Semiconductor device and capacitance measurement method Kyoji Yamashita, Hiroyuki Umimoto, Mutsumi Kobayashi, Katsuhiro Ohtani, Tatsuya Kunikiyo 2005-05-17
6876208 Semiconductor device and method of checking semiconductor storage device Tatsuya Kunikiyo, Kyoji Yamashita, Katsuhiro Ohtani, Hiroyuki Umimoto, Mutsumi Kobayashi 2005-04-05
6741495 Magnetic memory device and magnetic substrate Tatsuya Kunikiyo, Shigenobu Maeda 2004-05-25
6576965 Semiconductor device with lightly doped drain layer Yukio Nishida 2003-06-10
6567299 Magnetic memory device and magnetic substrate Tatsuya Kunikiyo, Shigenobu Maeda 2003-05-20
6461946 Method of manufacturing semiconductor device Takeshi Kitani, Masao Sugiyama 2002-10-08
5845105 Method of simulating semiconductor manufacture with process functions according to user application Tatsuya Kunikiyo, Kenichiro Sonoda, Masato Fujinaga, Kiyoshi Ishikawa, Norihiko Kotani 1998-12-01