YN

Yoshiyuki Nagayasu

JE Jx Nippon Oil & Energy: 14 patents #8 of 416Top 2%
IN Inpex: 2 patents #17 of 67Top 30%
JN Japan Oil, Gas And Metals National: 2 patents #23 of 106Top 25%
CC Cosmo Oil Co.: 2 patents #72 of 229Top 35%
JC Japan Petroleum Exploration Co.: 2 patents #18 of 93Top 20%
NE NS Sumikin Engineering: 2 patents #16 of 113Top 15%
NO Nippon Oil: 1 patents #392 of 773Top 55%
Overall (All Time): #320,842 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
9988585 Method for producing base oil for lubricant oils Kazuaki Hayasaka, Marie Iwama, Mayumi Yokoi, Tomohisa Hirano 2018-06-05
9868112 Fischer-Tropsch synthesis catalyst, manufacturing method therefor, and hydrocarbon manufacturing method Hideki Ono, Kazuaki Hayasaka 2018-01-16
9840672 ZSM-22 zeolite, hydroisomerization catalyst and method for producing same, and method for producing hydrocarbon Kazuaki Hayasaka, Mayumi Yokoi, Koshi TAKAHAMA 2017-12-12
9827554 Fischer-tropsch synthesis catalyst, method for producing same, and method for producing hydrocarbon Kazuaki Hayasaka, Eri Kosaka, Koshi TAKAHAMA 2017-11-28
9713807 Method for producing hydroisomerization catalyst and method for producing lubricant base oil Kazuaki Hayasaka, Marie Iwama 2017-07-25
9677012 Method for producing lubricant base oil Marie Iwama, Kazuaki Hayasaka 2017-06-13
9663422 Method for producing lubricating-oil base oil Marie Iwama, Kazuaki Hayasaka, Koshi TAKAHAMA 2017-05-30
9637692 Hydroisomerization catalyst, process for producing the same, method of dewaxing hydrocarbon oil, process for producing hydrocarbon, and process for producing lube base oil Kazuaki Hayasaka, Hideki Ono, Takaya Matsumoto 2017-05-02
9562200 Method for producing lubricant base oil Marie Iwama, Kazuaki Hayasaka, Koshi TAKAHAMA 2017-02-07
9458387 Activated fischer-tropsch synthesis reaction catalyst and method for producing hydrocarbons Hideki Ono, Kazuaki Hayasaka, Mayumi Yokoi 2016-10-04
9057026 Method for producing lubricant base oil Kazuaki Hayasaka, Hideki Ono, Masahiro Taguchi, Hideshi Iki 2015-06-16
8765823 Method for starting up bubble-column-type slurry-bed reactor, start-up solvent, and method for producing hydrocarbon oil 2014-07-01
8557725 Method for manufacturing a regenerated Fischer-Tropsch synthesis catalyst, and hydrocarbon manufacturing method Hideki Ono, Kazuaki Hayasaka 2013-10-15
8557879 Process for production of activated Fischer-Tropsch synthesis catalyst, and process for production of hydrocarbon Kazuaki Hayasaka, Hideki Ono 2013-10-15
8043989 Desulfurization system for hydrocarbon fuel Atsushi Segawa, Kazunori Miyazawa, Yoshihiro Kobori 2011-10-25