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Tokyo, Japan

Yoichi Ishikawa

Average Co-Inventor Count = 1.95

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 = 53

Yoichi IshikawaMitsunori Kaneko (2 patents)Yoichi IshikawaTomoaki Inoue (2 patents)Yoichi IshikawaMasayuki Okawa (1 patent)Yoichi IshikawaHidehiko Nagaya (1 patent)Yoichi IshikawaYu Hasegawa (1 patent)Yoichi IshikawaMasaki Komuro (1 patent)Yoichi IshikawaEiji Shamoto (1 patent)Yoichi IshikawaNobukazu Horiike (1 patent)Yoichi IshikawaTerutaka Yasuda (1 patent)Yoichi IshikawaToshihisa Nemoto (1 patent)Yoichi IshikawaNorikazu Suzuki (1 patent)Yoichi IshikawaHidebumi Takahashi (1 patent)Yoichi IshikawaTetsu Matsuzaki (1 patent)Yoichi IshikawaKeiichi Moriya (1 patent)Yoichi IshikawaKazuya Yamazaki (1 patent)Yoichi IshikawaShuta Takeda (1 patent)Yoichi IshikawaAkira Mizoguchi (1 patent)Yoichi IshikawaShuji Yokoo (1 patent)Yoichi IshikawaChikara Yokose (1 patent)Yoichi IshikawaIsami Hatano (1 patent)Yoichi IshikawaSanji Ozawa (1 patent)Yoichi IshikawaMakoto Shoda (1 patent)Yoichi IshikawaIsami Hatano (0 patent)Yoichi IshikawaYoichi Ishikawa (16 patents)Mitsunori KanekoMitsunori Kaneko (4 patents)Tomoaki InoueTomoaki Inoue (2 patents)Masayuki OkawaMasayuki Okawa (27 patents)Hidehiko NagayaHidehiko Nagaya (23 patents)Yu HasegawaYu Hasegawa (22 patents)Masaki KomuroMasaki Komuro (20 patents)Eiji ShamotoEiji Shamoto (17 patents)Nobukazu HoriikeNobukazu Horiike (15 patents)Terutaka YasudaTerutaka Yasuda (10 patents)Toshihisa NemotoToshihisa Nemoto (9 patents)Norikazu SuzukiNorikazu Suzuki (8 patents)Hidebumi TakahashiHidebumi Takahashi (7 patents)Tetsu MatsuzakiTetsu Matsuzaki (5 patents)Keiichi MoriyaKeiichi Moriya (5 patents)Kazuya YamazakiKazuya Yamazaki (4 patents)Shuta TakedaShuta Takeda (2 patents)Akira MizoguchiAkira Mizoguchi (1 patent)Shuji YokooShuji Yokoo (1 patent)Chikara YokoseChikara Yokose (1 patent)Isami HatanoIsami Hatano (1 patent)Sanji OzawaSanji Ozawa (1 patent)Makoto ShodaMakoto Shoda (1 patent)Isami HatanoIsami Hatano (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Able Corporation (6 from 18 patents)

2. Mitsubishi Materials Corporation (3 from 1,530 patents)

3. Maruyama Mfg. Co., Ltd. (3 from 60 patents)

4. Subaru Corporation (2 from 2,043 patents)

5. Oriental Yeast Co., Ltd. (2 from 68 patents)

6. Other (1 from 832,718 patents)

7. Nagoya University (1 from 371 patents)

8. Mitsubishi Heavy Industries Aero Engines, Ltd. (1 from 32 patents)

9. Oriental Sangyo Co., Ltd. (1 from 4 patents)

10. Hatano, Isami (0 patent)


16 patents:

1. 12466385 - Control apparatus for hybrid vehicle

2. 11162445 - Vehicle

3. 10480427 - Choke valve structure

4. 10300539 - Rotating-cutting-edge-type milling tool and cutting method using same

5. 10085390 - Backpack type blowing apparatus

6. D806330 - Backpack blower

7. 8888977 - Combination electrode for ion concentration measurement

8. 8586025 - Method of inhibiting methanogenesis

9. 7028997 - Vibration damping tool

10. 6235189 - Method of supplying dissolved carbon dioxide to plants in an aqueous medium

11. 6126365 - Boring tool

12. 5626824 - Autoclave

13. 5605611 - Carbon dioxide-generating electrode apparatus

14. 4902962 - Detection of the surface of a liquid or foam including moisture

15. 4460451 - Steam-sterilizable carbon dioxide sensor

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12/10/2025
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