YK

Yukio Koizumi

KS Kobe Steel: 11 patents #18 of 2,031Top 1%
The Yokohama Rubber Co.: 2 patents #475 of 1,136Top 45%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
KC Kobelco Construction Machinery Co.: 1 patents #243 of 422Top 60%
Overall (All Time): #319,326 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
10640342 Back stop for crane Yohei Matsuo 2020-05-05
6911103 Thermoplastic elastomer composition, insulating glass using the composition, process for producing the insulating glass and nozzle for producing the insulating glass Jiro Watanabe, Hidekazu Takeyama, Shigeru Yamauchi, Toru Serizawa 2005-06-28
6491992 Thermoplastic elastomer composition, insulating glass using the composition, process for producing the insulating glass Jiro Watanabe, Hidekazu Takeyama, Shigeru Yamauchi, Toru Serizawa 2002-12-10
5620823 Developing agent for electrophotography and developing method Akira Kambayashi, Shigeyuki Kuroiwa 1997-04-15
5193698 Jib stretching and folding device for use in a crane 1993-03-16
5143233 Jib stretching and folding device for use in a crane 1992-09-01
5135118 Jib hold rod securing device for cranes 1992-08-04
5115925 Jib stretching and folding device for crane 1992-05-26
5115923 Method for stretching and folding a jib for crane 1992-05-26
4995472 Steering controlling device for wheel crane Norihiko Hayashi, Tsuyoshi Katada 1991-02-26
4967917 Jib derricking gear for a crane Shunsuke Yokoyama, Takahiro Kobayashi 1990-11-06
4953724 Jib stretching and folding device 1990-09-04
4923071 Jib stretching and folding mechanism for a jib crane 1990-05-08
4658972 Method for stretching and folding extension jib in wheeled type crane Hiroshi Miyazawa 1987-04-21
4595108 Method for stretching and folding extension jib in wheeled type crane Hiroshi Miyazawa 1986-06-17