Kiyoshi Yukawa — 6 Patents at Japan Polypropylene

Kiyoshi Yukawa has been granted 6 US patents while listed as an inventor at Japan Polypropylene. The first was granted in 2001 and the most recent in February 2015. Kiyoshi Yukawa ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Kiyoshi Yukawa in Kurashiki, JP.

Patents per Year

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
8957166	Method for producing propylene-based polymer	Yoshitaka Kobayashi, Takanori Nakashima, Yusuke Yamada, Hajime Aoyama, Nobuhiro Iwai	2015-02-17
7875682	Propylene block copolymer and process for production thereof	Takehiro Sagae	2011-01-25
7485686	Manufacturing method of polyolefin	Kazuhiro Yamamoto, Yasuhiro Kashiwagi, Yoichi Maeda	2009-02-03
6756463	Propylene polymer	Toshihiko Sugano, Masaaki Ito	2004-06-29
6466875	Method of estimating gel content of propylene block copolymer	Kenji Mitsutani, Glen H. Ko, Fuminao Watanabe	2002-10-15
6191232	Propylene block copolymer	Kenji Mitsutani, Fumihiko Shimizu, Glen H. Ko, Eiji Tanaka, Fuminao Watanabe	2001-02-20