KN

Katsutoshi Nakayama

Ngk Spark Plug Co.: 39 patents #16 of 1,594Top 2%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
NK Nippon Kayaku: 1 patents #556 of 1,103Top 55%
PU President Of Tohoku University: 1 patents #10 of 28Top 40%
Overall (All Time): #73,733 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
8264131 Spark plug Nobuaki Sakayanagi 2012-09-11
8247740 Spark plug, and its manufacturing method Satoshi Nagasawa 2012-08-21
8222803 Spark plug and manufacturing method thereof Kohei Katsuraya 2012-07-17
8212463 Spark plug and its manufacturing method Nobuaki Sakayanagi 2012-07-03
8188641 Spark plug Hiroyuki Kameda, Satoshi Nagasawa 2012-05-29
8102106 Spark plug and method of manufacturing the same Kohei Katsuraya 2012-01-24
8013503 Spark plug for internal combustion engine having ground electrode with thick, thin and stepped portion and method for producing the spark plug Hiroyuki Kameda, Satoshi Nagasawa 2011-09-06
8013504 Spark plug for internal combustion engine and method for producing the spark plug Hiroyuki Kameda, Satoshi Nagasawa 2011-09-06
7906894 Spark plug for internal combustion engine Hiroyuki Kameda, Tomoaki Kato 2011-03-15
7825572 Spark plug Hiroyuki Kameda 2010-11-02
7821186 Spark plug having specific configuration of center electrode with respect to outer electrode Hiroyuki Kameda, Satoshi Nagasawa, Kazumasa Yoshida 2010-10-26
7781949 Spark plug Kaori Kishimoto, Hiroyuki Kameda, Yasushi Sakakura 2010-08-24
7703428 Spark plug and internal combustion engine in which the spark plug is disposed Hiroyuki Kameda 2010-04-27
7150252 Spark plug and internal combustion engine equipped with the spark plug Yoshihisa Sugiyama, Takeru Wakamatsu 2006-12-19
6654945 Storage medium in which data for designing an integrated circuit is stored and method of fabricating an integrated circuit Satoshi Kojima, Syouhei Oda 2003-11-25
6436645 Method for predicting risk of developing chronic pulmonary emphysema Hidetada Sasaki, Shoji Okinaga, Mutsuo Yamaya 2002-08-20
5797383 Dual polarity type ignition system for a spark plug group Yoshihiro Matsubara 1998-08-25