Growing community of inventors

Urawa, Japan

Etsuo Tobita

Average Co-Inventor Count = 2.59

ph-index = 4

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 = 57

Etsuo TobitaYutaka Nakahara (11 patents)Etsuo TobitaMotonobu Minagawa (4 patents)Etsuo TobitaToshihiro Shibata (3 patents)Etsuo TobitaTohru Haruna (2 patents)Etsuo TobitaEtsuo Tobita (11 patents)Yutaka NakaharaYutaka Nakahara (65 patents)Motonobu MinagawaMotonobu Minagawa (74 patents)Toshihiro ShibataToshihiro Shibata (59 patents)Tohru HarunaTohru Haruna (33 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Adeka Argus Chemical Co., Ltd. (11 from 93 patents)


11 patents:

1. 4910238 - Poly(2,2,6,6-tetramethyl piperidyl amino)-1,3,5-triazines as stabilizers

2. 4898688 - Poly(2,2,6-tetramethyl piperidyl amino)-1,3,5-triazines as stabilizers

3. 4885323 - Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol

4. 4759871 - Hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl

5. 4760141 - Hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl

6. 4743688 - Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol

7. 4740544 - Hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl

8. 4670492 - Cyclic bis and tris phosphites and stabilized synthetic resin

9. 4491643 - Bis(2,2,6,6-tetramethylpiperidyl-1,3,5-triazinyl)-spirodiamines and

10. 4481317 - Hindered bisphenol diphosphonites and stabilized synthetic resin

11. 4371647 - 2,6-Di-tertiary butyl phenyl pentaerythritol spiro bis-phosphites

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12/6/2025
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