Growing community of inventors

Toyama, Japan

Takashi Sakai

Average Co-Inventor Count = 3.01

ph-index = 5

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 = 138

Takashi SakaiKazuhiko Morifuji (3 patents)Takashi SakaiMigaku Suzuki (2 patents)Takashi SakaiHiroshi Kitayama (2 patents)Takashi SakaiYoshiaki Ishida (1 patent)Takashi SakaiNaoki Mochida (1 patent)Takashi SakaiYoshihito Minami (1 patent)Takashi SakaiMitsuo Tsuneda (1 patent)Takashi SakaiSohta Takatsu (1 patent)Takashi SakaiTakeshi Kawada (1 patent)Takashi SakaiSusumu Nario (1 patent)Takashi SakaiAkira Kunisaki (1 patent)Takashi SakaiHisashi Kanda (1 patent)Takashi SakaiTakashi Mino (1 patent)Takashi SakaiKazuo Maeda (1 patent)Takashi SakaiKatsura Shimada (1 patent)Takashi SakaiTakayuki Irie (1 patent)Takashi SakaiYuzo Kawada (1 patent)Takashi SakaiTomio Jatani (1 patent)Takashi SakaiMasamitu Yamamoto (1 patent)Takashi SakaiTakashi Gando (1 patent)Takashi SakaiHirohumi Okura (1 patent)Takashi SakaiShunsuke Kosaka (1 patent)Takashi SakaiMituo Kono (1 patent)Takashi SakaiMasuo Kawabata (1 patent)Takashi SakaiTakashi Sakai (11 patents)Kazuhiko MorifujiKazuhiko Morifuji (3 patents)Migaku SuzukiMigaku Suzuki (86 patents)Hiroshi KitayamaHiroshi Kitayama (2 patents)Yoshiaki IshidaYoshiaki Ishida (4 patents)Naoki MochidaNaoki Mochida (4 patents)Yoshihito MinamiYoshihito Minami (2 patents)Mitsuo TsunedaMitsuo Tsuneda (1 patent)Sohta TakatsuSohta Takatsu (1 patent)Takeshi KawadaTakeshi Kawada (1 patent)Susumu NarioSusumu Nario (1 patent)Akira KunisakiAkira Kunisaki (1 patent)Hisashi KandaHisashi Kanda (1 patent)Takashi MinoTakashi Mino (1 patent)Kazuo MaedaKazuo Maeda (1 patent)Katsura ShimadaKatsura Shimada (1 patent)Takayuki IrieTakayuki Irie (1 patent)Yuzo KawadaYuzo Kawada (1 patent)Tomio JataniTomio Jatani (1 patent)Masamitu YamamotoMasamitu Yamamoto (1 patent)Takashi GandoTakashi Gando (1 patent)Hirohumi OkuraHirohumi Okura (1 patent)Shunsuke KosakaShunsuke Kosaka (1 patent)Mituo KonoMituo Kono (1 patent)Masuo KawabataMasuo Kawabata (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mitsubishi Rayon Company, Limited (6 from 1,357 patents)

2. Mitsubishi Acetate Co., Ltd (5 from 7 patents)

3. Komatsu Corporation (2 from 2,730 patents)

4. Mitsubishi Adetate Co. (2 from 2 patents)

5. Unicharm Corporation (1 from 1,645 patents)

6. Japan Tobacco Inc. (1 from 1,038 patents)

7. Nachi - Fujikoshi Corporation (1 from 54 patents)

8. Maeda Corporation Limited (1 from 14 patents)

9. Hazama Corporation (1 from 8 patents)

10. Sato Kogyo Co., Ltd. (1 from 8 patents)


11 patents:

1. 9770831 - Industrial robot

2. 9033095 - Exhaust treatment unit, manufacturing method of exhaust treatment unit, and work vehicle

3. 5915790 - Tunnel boring machine

4. 5282779 - Air jet for producing filter plug for cigarette

5. 4826433 - Stick absorber for oral cavity

6. 4670953 - Method for forming warp beam of uniform diameter

7. 4583560 - Tobacco smoke filter

8. 4488563 - Filter plug

9. 4411641 - Method for producing a tobacco smoke filter plug

10. 4357188 - Method for manufacturing cigarette filters

11. 4316475 - Tobacco smoke filter plug and producing method therefor

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12/15/2025
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