Growing community of inventors

Tokyo, Japan

Yusuke Oka

Average Co-Inventor Count = 5.91

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 = 7

Yusuke OkaTetsuya Yabuuchi (4 patents)Yusuke OkaYoshinori Sekiguchi (3 patents)Yusuke OkaShoichi Kuroda (3 patents)Yusuke OkaFumito Uneuchi (3 patents)Yusuke OkaNobuyuki Yamamoto (2 patents)Yusuke OkaMasato Takahashi (2 patents)Yusuke OkaNaoya Ono (2 patents)Yusuke OkaTakahiro Oi (2 patents)Yusuke OkaHiroki Urabe (2 patents)Yusuke OkaTetsuo Takayama (2 patents)Yusuke OkaHajime Takashima (2 patents)Yusuke OkaHironori Kotsubo (2 patents)Yusuke OkaMuneo Shoji (2 patents)Yusuke OkaYasuko Kawaguchi (2 patents)Yusuke OkaRisa Tsuruta (2 patents)Yusuke OkaYoichiro Suga (2 patents)Yusuke OkaAtsushi Kawamura (1 patent)Yusuke OkaHiroshi Inagaki (1 patent)Yusuke OkaHajime Asanuma (1 patent)Yusuke OkaFumihito Ushiyama (1 patent)Yusuke OkaMadoka Kawamura (1 patent)Yusuke OkaDaisuke Wakasugi (1 patent)Yusuke OkaTakeshi Koami (1 patent)Yusuke OkaYoshihisa Shirasaki (1 patent)Yusuke OkaAkito Hatayama (1 patent)Yusuke OkaRie Nishikawa (1 patent)Yusuke OkaNaoya Ono (0 patent)Yusuke OkaYusuke Oka (7 patents)Tetsuya YabuuchiTetsuya Yabuuchi (9 patents)Yoshinori SekiguchiYoshinori Sekiguchi (13 patents)Shoichi KurodaShoichi Kuroda (7 patents)Fumito UneuchiFumito Uneuchi (5 patents)Nobuyuki YamamotoNobuyuki Yamamoto (84 patents)Masato TakahashiMasato Takahashi (82 patents)Naoya OnoNaoya Ono (22 patents)Takahiro OiTakahiro Oi (9 patents)Hiroki UrabeHiroki Urabe (9 patents)Tetsuo TakayamaTetsuo Takayama (8 patents)Hajime TakashimaHajime Takashima (8 patents)Hironori KotsuboHironori Kotsubo (7 patents)Muneo ShojiMuneo Shoji (5 patents)Yasuko KawaguchiYasuko Kawaguchi (4 patents)Risa TsurutaRisa Tsuruta (3 patents)Yoichiro SugaYoichiro Suga (2 patents)Atsushi KawamuraAtsushi Kawamura (73 patents)Hiroshi InagakiHiroshi Inagaki (28 patents)Hajime AsanumaHajime Asanuma (11 patents)Fumihito UshiyamaFumihito Ushiyama (8 patents)Madoka KawamuraMadoka Kawamura (5 patents)Daisuke WakasugiDaisuke Wakasugi (4 patents)Takeshi KoamiTakeshi Koami (4 patents)Yoshihisa ShirasakiYoshihisa Shirasaki (4 patents)Akito HatayamaAkito Hatayama (3 patents)Rie NishikawaRie Nishikawa (2 patents)Naoya OnoNaoya Ono (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Taisho Pharmaceutical Co., Ltd. (5 from 314 patents)

2. Toyama Chemical Co., Ltd. (2 from 159 patents)

3. Mitsubishi Chemical Corporation (1 from 2,346 patents)

4. Mitsubishi Rayon Company, Limited (1 from 1,357 patents)

5. Fujifilm Toyama Chemical Co., Ltd. (37 patents)


7 patents:

1. 10940400 - Heat treatment furnace device and method for producing carbon fiber bundle

2. 9499477 - Hydroxamic acid derivative

3. 9267080 - Carbonization furnace for manufacturing carbon fiber bundle and method for manufacturing carbon fiber bundle

4. 9181229 - Azole derivative

5. 9073821 - Hydroxamic acid derivative

6. 8637557 - Aminothiazole derivative

7. 8461329 - Isoquinoline derivative

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12/3/2025
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