Growing community of inventors

Tokyo, Japan

Yoshiyuki Nagayasu

Average Co-Inventor Count = 3.07

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 23

Yoshiyuki NagayasuKazuaki Hayasaka (13 patents)Yoshiyuki NagayasuHideki Ono (6 patents)Yoshiyuki NagayasuMarie Iwama (5 patents)Yoshiyuki NagayasuKoshi Takahama (4 patents)Yoshiyuki NagayasuMayumi Yokoi (3 patents)Yoshiyuki NagayasuMasahiro Taguchi (1 patent)Yoshiyuki NagayasuHideshi Iki (1 patent)Yoshiyuki NagayasuTakaya Matsumoto (1 patent)Yoshiyuki NagayasuTomohisa Hirano (1 patent)Yoshiyuki NagayasuEri Kosaka (1 patent)Yoshiyuki NagayasuYoshiyuki Nagayasu (14 patents)Kazuaki HayasakaKazuaki Hayasaka (25 patents)Hideki OnoHideki Ono (63 patents)Marie IwamaMarie Iwama (18 patents)Koshi TakahamaKoshi Takahama (6 patents)Mayumi YokoiMayumi Yokoi (5 patents)Masahiro TaguchiMasahiro Taguchi (17 patents)Hideshi IkiHideshi Iki (14 patents)Takaya MatsumotoTakaya Matsumoto (9 patents)Tomohisa HiranoTomohisa Hirano (3 patents)Eri KosakaEri Kosaka (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Jx Nippon Oil Energy Corporation (14 from 331 patents)

2. Cosmo Oil Co., Ltd. (2 from 163 patents)

3. Japan Oil, Gas and Metals National Corporation (2 from 94 patents)

4. Japan Petroleum Exploration Co., Ltd. (2 from 80 patents)

5. Inpex Corporation (2 from 73 patents)

6. Nippon Steel & Sumikin Engineering Co., Ltd. (2 from 53 patents)


14 patents:

1. 9988585 - Method for producing base oil for lubricant oils

2. 9868112 - Fischer-Tropsch synthesis catalyst, manufacturing method therefor, and hydrocarbon manufacturing method

3. 9840672 - ZSM-22 zeolite, hydroisomerization catalyst and method for producing same, and method for producing hydrocarbon

4. 9827554 - Fischer-tropsch synthesis catalyst, method for producing same, and method for producing hydrocarbon

5. 9713807 - Method for producing hydroisomerization catalyst and method for producing lubricant base oil

6. 9677012 - Method for producing lubricant base oil

7. 9663422 - Method for producing lubricating-oil base oil

8. 9637692 - Hydroisomerization catalyst, process for producing the same, method of dewaxing hydrocarbon oil, process for producing hydrocarbon, and process for producing lube base oil

9. 9562200 - Method for producing lubricant base oil

10. 9458387 - Activated fischer-tropsch synthesis reaction catalyst and method for producing hydrocarbons

11. 9057026 - Method for producing lubricant base oil

12. 8765823 - Method for starting up bubble-column-type slurry-bed reactor, start-up solvent, and method for producing hydrocarbon oil

13. 8557725 - Method for manufacturing a regenerated Fischer-Tropsch synthesis catalyst, and hydrocarbon manufacturing method

14. 8557879 - Process for production of activated Fischer-Tropsch synthesis catalyst, and process for production of hydrocarbon

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12/9/2025
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