KO

Keiji Ozeki

Ngk Spark Plug Co.: 14 patents #106 of 1,594Top 7%
📍 Konan, JP: #29 of 236 inventorsTop 15%
Overall (All Time): #344,379 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11476644 Spark plug Shunsuke Tsuga 2022-10-18
10256610 Spark plug Tsutomu Kobayashi 2019-04-09
10027093 Spark plug Tsutomu Kobayashi 2018-07-17
10008834 Method for manufacturing spark plug Junji Kimura 2018-06-26
9660423 Spark plug having an electrode structure that effectively suppresses flashover 2017-05-23
9620935 Spark plug Tsutomu Kobayashi 2017-04-11
9496687 Method for manufacturing spark plug Jiro Kyuno, Tomoaki Kato 2016-11-15
9306375 Spark plug Tomoaki Kato, Naoyuki Mukoyama 2016-04-05
9276383 Spark plug, and production method therefor Tomoaki Kato, Naoyuki Mukoyama, Tsutomu Kobayashi 2016-03-01
9225150 Spark plug Masahiro Nishida, Tomoaki Kato, Naoyuki Mukouyama, Tsutomu Kobayashi 2015-12-29
8939808 Method and device for manufacturing spark plug Jiro Kyuno, Tomoaki Kato, Akiko Maruno 2015-01-27
8791627 Spark plug configured to reduce the occurance of flashover Naoyuki Mukoyama 2014-07-29
7272970 Spark plug having combustion pressure detecting function Koji Okazaki 2007-09-25
7185621 Glow plug with combustion pressure detecting function Tatsunori Yamada, Yuichi Yamada, Koji Okazaki, Masayoshi Matsui, Takahiro Suzuki 2007-03-06