Growing community of inventors

Ibaraki, Japan

Masayuki Oya

Average Co-Inventor Count = 3.31

ph-index = 7

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 = 163

Masayuki OyaTadashi Iso (24 patents)Masayuki OyaJun-ichi Iwao (17 patents)Masayuki OyaTakehisa Chiba (7 patents)Masayuki OyaJunichi Iwao (5 patents)Masayuki OyaToshio Baba (5 patents)Masayuki OyaTadashi Fujita (3 patents)Masayuki OyaToshio Watanabe (2 patents)Masayuki OyaKatsuyuki Kito (2 patents)Masayuki OyaHideo Takashina (2 patents)Masayuki OyaEishin Kato (2 patents)Masayuki OyaSatoshi Kobayashi (2 patents)Masayuki OyaHiroshi Masuda (1 patent)Masayuki OyaYoichi Kawashima (1 patent)Masayuki OyaKenichi Ito (1 patent)Masayuki OyaYongrong Dong (1 patent)Masayuki OyaMitsuhiro Kishimi (1 patent)Masayuki OyaKenichi Itou (1 patent)Masayuki OyaSatoshi Kono (1 patent)Masayuki OyaYoshiyasu Kawagoe (1 patent)Masayuki OyaItaru Mita (1 patent)Masayuki OyaToshikatsu Enjoji (1 patent)Masayuki OyaRyouhei Iwahara (1 patent)Masayuki OyaMasaru Kobayashi (1 patent)Masayuki OyaTakihisa Chiba (1 patent)Masayuki OyaMasako Tatsuta (1 patent)Masayuki OyaTakahiro Matsumura (1 patent)Masayuki OyaSatoshi Kobayashi (1 patent)Masayuki OyaMasayuki Oya (32 patents)Tadashi IsoTadashi Iso (33 patents)Jun-ichi IwaoJun-ichi Iwao (18 patents)Takehisa ChibaTakehisa Chiba (8 patents)Junichi IwaoJunichi Iwao (5 patents)Toshio BabaToshio Baba (5 patents)Tadashi FujitaTadashi Fujita (4 patents)Toshio WatanabeToshio Watanabe (28 patents)Katsuyuki KitoKatsuyuki Kito (10 patents)Hideo TakashinaHideo Takashina (3 patents)Eishin KatoEishin Kato (2 patents)Satoshi KobayashiSatoshi Kobayashi (2 patents)Hiroshi MasudaHiroshi Masuda (30 patents)Yoichi KawashimaYoichi Kawashima (27 patents)Kenichi ItoKenichi Ito (20 patents)Yongrong DongYongrong Dong (17 patents)Mitsuhiro KishimiMitsuhiro Kishimi (12 patents)Kenichi ItouKenichi Itou (12 patents)Satoshi KonoSatoshi Kono (4 patents)Yoshiyasu KawagoeYoshiyasu Kawagoe (3 patents)Itaru MitaItaru Mita (2 patents)Toshikatsu EnjojiToshikatsu Enjoji (2 patents)Ryouhei IwaharaRyouhei Iwahara (1 patent)Masaru KobayashiMasaru Kobayashi (1 patent)Takihisa ChibaTakihisa Chiba (1 patent)Masako TatsutaMasako Tatsuta (1 patent)Takahiro MatsumuraTakahiro Matsumura (1 patent)Satoshi KobayashiSatoshi Kobayashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Santen Pharmaceutical Co., Ltd. (27 from 281 patents)

2. Hitachi Maxell, Limited (3 from 1,112 patents)

3. Sumitomo Electric Industries, Limited (2 from 10,250 patents)

4. Toyobo Co., Ltd. (1 from 395 patents)


32 patents:

1. 11139481 - Redox flow battery electrode, and redox flow battery

2. 11101466 - Carbon electrode material for redox flow battery, and manufacturing method thereof

3. 9257697 - Positive electrode material, manufacturing method thereof, positive electrode for non-aqueous rechargeable battery, and non-aqueous rechargeable battery

4. 8846779 - Energy ray-curable ink composition

5. 8124666 - Energy ray-curable ink composition

6. 4786635 - Novel benzothiazine derivatives

7. 4584300 - Platelet anti-aggregative- and calcium antagonistic

8. 4558125 - Benzothiazoline compounds which contain a carbonyl group useful for

9. 4552969 - 3-Alkanoyl benzothiazoline compounds useful for treating cardiovascular

10. 4552765 - Aletheine derivatives

11. 4547513 - 2-Arylbenzothiazoline derivatives and their use in treating angina cordis

12. 4517123 - Cysteine derivatives of disulfide form

13. 4499102 - Thiazolidine and pyrrolidine compounds and pharmaceutical compositions

14. 4496578 - Antihypertensive sulfur-containing compounds

15. 4483861 - Antihypertensive sulfur-containing compounds

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12/28/2025
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