Growing community of inventors

Tokyo, Japan

Takeshi Kumazawa

Average Co-Inventor Count = 2.06

ph-index = 6

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 = 469

Takeshi KumazawaMasafumi Fukumoto (3 patents)Takeshi KumazawaHiroshi Miura (2 patents)Takeshi KumazawaTadashi Takahashi (1 patent)Takeshi KumazawaTakeshi Yamazaki (1 patent)Takeshi KumazawaMasao Isshiki (1 patent)Takeshi KumazawaNaoya Morozumi (1 patent)Takeshi KumazawaTakuya Hirayama (1 patent)Takeshi KumazawaTakumi Yoshida (1 patent)Takeshi KumazawaHirotsugu Sakata (1 patent)Takeshi KumazawaHitoshi Matsumoto (1 patent)Takeshi KumazawaMasayuki Okuda (1 patent)Takeshi KumazawaMakoto Hayano (1 patent)Takeshi KumazawaKazuo Tomono (1 patent)Takeshi KumazawaToshiya Yajima (1 patent)Takeshi KumazawaHirokazu Umehara (1 patent)Takeshi KumazawaTsuyoshi Hirao (1 patent)Takeshi KumazawaHirokatsu Araki (1 patent)Takeshi KumazawaTeruo Kobuna (1 patent)Takeshi KumazawaGoro Kikuchi (1 patent)Takeshi KumazawaGoro Kikuch (1 patent)Takeshi KumazawaTakeshi Yamazaki (0 patent)Takeshi KumazawaTakeshi Kumazawa (13 patents)Masafumi FukumotoMasafumi Fukumoto (3 patents)Hiroshi MiuraHiroshi Miura (2 patents)Tadashi TakahashiTadashi Takahashi (85 patents)Takeshi YamazakiTakeshi Yamazaki (47 patents)Masao IsshikiMasao Isshiki (33 patents)Naoya MorozumiNaoya Morozumi (32 patents)Takuya HirayamaTakuya Hirayama (29 patents)Takumi YoshidaTakumi Yoshida (24 patents)Hirotsugu SakataHirotsugu Sakata (23 patents)Hitoshi MatsumotoHitoshi Matsumoto (18 patents)Masayuki OkudaMasayuki Okuda (17 patents)Makoto HayanoMakoto Hayano (15 patents)Kazuo TomonoKazuo Tomono (4 patents)Toshiya YajimaToshiya Yajima (4 patents)Hirokazu UmeharaHirokazu Umehara (4 patents)Tsuyoshi HiraoTsuyoshi Hirao (3 patents)Hirokatsu ArakiHirokatsu Araki (3 patents)Teruo KobunaTeruo Kobuna (3 patents)Goro KikuchiGoro Kikuchi (1 patent)Goro KikuchGoro Kikuch (1 patent)Takeshi YamazakiTakeshi Yamazaki (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Fujitsu Corporation (6 from 39,228 patents)

2. Kabushiki Kaisha Toshiba (3 from 52,711 patents)

3. Hirose Electric Company, Ltd. (2 from 773 patents)

4. Tensho Electric Industries Co., Ltd. (2 from 2 patents)


13 patents:

1. 9332016 - Web server, information providing method, and information providing system

2. 9219635 - Server apparatus and privilege receiving opportunity notification method

3. 8011944 - Electrical connector assembly

4. 7354313 - Photoelectric combined connector

5. 7293089 - Site evaluation system and site evaluation program storage medium

6. 7277939 - Site evaluation system and site evaluation program storage medium

7. 7222171 - Site evaluation system and site evaluation program storage medium

8. 6442589 - Method and system for sorting and forwarding electronic messages and other data

9. 6261073 - Rotary compressor having bearing member with discharge valve element

10. 5350280 - Fluid compressor

11. 5010739 - Air conditioning apparatus having audible sound level control function

12. D298178 - Combined respirator and goggles

13. 4688567 - Gas mask

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12/7/2025
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