KK

Katsumi Kawamura

PE Pentax: 21 patents #75 of 761Top 10%
Pioneer Electronic: 6 patents #303 of 1,840Top 20%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
AK Asahi Kogaku Kogyo K.K.: 4 patents #27 of 180Top 15%
HO Hoya: 3 patents #406 of 1,290Top 35%
NS National Institute For Materials Science: 3 patents #129 of 901Top 15%
Pioneer: 3 patents #574 of 1,730Top 35%
PE Pentax: 1 patents #238 of 396Top 65%
Overall (All Time): #71,079 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
5638104 Thermal line printer Minoru Suzuki, Hiroshi Orita, Michirou Ohishi, Kiyoshi Negishi, Katsuyoshi Suzuki +3 more 1997-06-10
5599113 Thermal printer Minoru Suzuki, Kiyoshi Negishi, Mikio Horie, Hiroshi Orita, Katsuyoshi Suzuki 1997-02-04
5570962 Thermal printer Minoru Suzuki, Kiyoshi Negishi, Mikio Horie, Hiroshi Orita, Katsuyoshi Suzuki 1996-11-05
RE35340 Packing material for liquid chromatography Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo 1996-10-01
5171440 Column for liquid chromatography 1992-12-15
5158756 Porous particles of calcium phosphate compound and production process thereof Tetsuro Ogawa, Akihiko Yokoo, Kazuhiro Naganuma, Satoshi Fujinuma 1992-10-27
5103436 Tilt servo device in optical disc player Kazuo Yajika 1992-04-07
5060215 Method and apparatus for leading-in focus servo by moving the objective lens toward the recording surface at two different speeds Ichiro Narumi, Takao Yamada 1991-10-22
5054013 Track transverse detection signal generating circuit 1991-10-01
5039408 Packing material for liquid chromatography Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo 1991-08-13
5030611 Porous ceramics material Tetsuro Ogawa, Satoshi Fujinuma 1991-07-09
5010582 Pickup driving device for disk player 1991-04-23
4984115 Rotary actuator and bearing support therefor Tsuyoshi Takahashi, Jun Naruse, Jyousei Shimizu 1991-01-08
4892423 Rotary actuator and fabrication process therefor Tsuyoshi Takahashi, Jun Naruse, Jyousei Shimizu 1990-01-09
4879618 Wind breaking assembly for a magnetic head Muneo Iida, Masanobu Honda, Hiroshi Daito, Yoshihiko Miyake, Shouichi Setone +2 more 1989-11-07
4812934 Actuator for memory storage device Masami Suzuki, Hiroshi Nishida, Tomio Suzuki, Tsuyoshi Takahashi 1989-03-14
4748610 Servo system in data reading apparatus Junichi Nakata 1988-05-31
4637005 Focus servo device of a system for reading out recorded information Ryuichi Naito, Minoru Kosaka 1987-01-13