Growing community of inventors

Tokyo, Japan

Koji Otsuka

Average Co-Inventor Count = 2.44

ph-index = 8

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 = 219

Koji OtsukaTakashi Kado (6 patents)Koji OtsukaPaul Andrew Cogley (6 patents)Koji OtsukaKathryn Marie Birchmeier (6 patents)Koji OtsukaNoriko Sakamoto (6 patents)Koji OtsukaTsuyoshi Ogino (5 patents)Koji OtsukaYumi Shimazaki (5 patents)Koji OtsukaKozo Ando (3 patents)Koji OtsukaKenji Okamura (3 patents)Koji OtsukaTakayuki Sekiguchi (3 patents)Koji OtsukaMasabumi Ito (3 patents)Koji OtsukaHiroshi Kojima (2 patents)Koji OtsukaDaisuke Yoneyama (2 patents)Koji OtsukaTakuya Moriya (2 patents)Koji OtsukaKazuhiro Yamauchi (1 patent)Koji OtsukaKoji Shimizu (1 patent)Koji OtsukaSatoru Nishioka (1 patent)Koji OtsukaYuichi Kikuchi (1 patent)Koji OtsukaTetsuo Hino (1 patent)Koji OtsukaTomoaki Nakamura (1 patent)Koji OtsukaMasahisa Yamaguchi (1 patent)Koji OtsukaNorifumi Muranaka (1 patent)Koji OtsukaNobuaki Ueki (1 patent)Koji OtsukaHiroshi Yamamoto (1 patent)Koji OtsukaTaeko Kanamori (1 patent)Koji OtsukaMasaki Imoto (1 patent)Koji OtsukaWakako Yoshimura (1 patent)Koji OtsukaYasunori Honzawa (1 patent)Koji OtsukaSeiichiro Komoda (1 patent)Koji OtsukaIzumi Kojima (1 patent)Koji OtsukaTakashi Nakagome (1 patent)Koji OtsukaYukitaka Aoki (1 patent)Koji OtsukaNana Sugimoto (1 patent)Koji OtsukaKoji Otsuka (32 patents)Takashi KadoTakashi Kado (19 patents)Paul Andrew CogleyPaul Andrew Cogley (12 patents)Kathryn Marie BirchmeierKathryn Marie Birchmeier (10 patents)Noriko SakamotoNoriko Sakamoto (7 patents)Tsuyoshi OginoTsuyoshi Ogino (15 patents)Yumi ShimazakiYumi Shimazaki (5 patents)Kozo AndoKozo Ando (24 patents)Kenji OkamuraKenji Okamura (20 patents)Takayuki SekiguchiTakayuki Sekiguchi (14 patents)Masabumi ItoMasabumi Ito (13 patents)Hiroshi KojimaHiroshi Kojima (161 patents)Daisuke YoneyamaDaisuke Yoneyama (9 patents)Takuya MoriyaTakuya Moriya (4 patents)Kazuhiro YamauchiKazuhiro Yamauchi (87 patents)Koji ShimizuKoji Shimizu (54 patents)Satoru NishiokaSatoru Nishioka (42 patents)Yuichi KikuchiYuichi Kikuchi (39 patents)Tetsuo HinoTetsuo Hino (37 patents)Tomoaki NakamuraTomoaki Nakamura (26 patents)Masahisa YamaguchiMasahisa Yamaguchi (23 patents)Norifumi MuranakaNorifumi Muranaka (21 patents)Nobuaki UekiNobuaki Ueki (14 patents)Hiroshi YamamotoHiroshi Yamamoto (12 patents)Taeko KanamoriTaeko Kanamori (2 patents)Masaki ImotoMasaki Imoto (1 patent)Wakako YoshimuraWakako Yoshimura (1 patent)Yasunori HonzawaYasunori Honzawa (1 patent)Seiichiro KomodaSeiichiro Komoda (1 patent)Izumi KojimaIzumi Kojima (1 patent)Takashi NakagomeTakashi Nakagome (1 patent)Yukitaka AokiYukitaka Aoki (1 patent)Nana SugimotoNana Sugimoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dai Nippon Printing Co., Ltd. (9 from 3,199 patents)

2. Asahi Glass Company, Limited (8 from 2,560 patents)

3. Taiyo Yuden Co., Ltd. (8 from 1,765 patents)

4. Kabushiki Kaisha Audio Technica (6 from 405 patents)

5. Kraft Foods Global Brands LLC (4 from 255 patents)

6. Kraft Foods Group Brands LLC (2 from 269 patents)

7. Canon Kabushiki Kaisha (1 from 90,697 patents)

8. Fujinon Corporation (1 from 695 patents)

9. Audio-technica Corporation (216 patents)


32 patents:

1. 12119166 - Method for manufacturing an electronic component

2. 10714266 - Electronic component and method of manufacturing the same

3. 10679786 - Electronic component

4. 10511900 - Headphone

5. 10431387 - Electronic component and method of manufacturing the same

6. 10312015 - Electronic component

7. 10249287 - Noise-cancelling headphone

8. 10204615 - Noise-cancelling headphone

9. 9959858 - Noise-cancelling headphone

10. 9913020 - Noise-cancelling headphone

11. 9837213 - Ceramic electronic component

12. 9737085 - Multi-component food packaging for microwave oven

13. 9651888 - Electroconductive member with a surface layer including a porous body having a continuous open pore

14. 8748786 - Multi-component food packaging for microwave oven

15. 8460843 - Method for finishing surface of preliminary polished glass substrate

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12/29/2025
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