Growing community of inventors

Yachiyo, Japan

Hiroyoshi Hamanaka

Average Co-Inventor Count = 1.54

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 = 13

Hiroyoshi HamanakaTetsuji Kakizaki (2 patents)Hiroyoshi HamanakaToshio Ikeuchi (1 patent)Hiroyoshi HamanakaTadao Goto (1 patent)Hiroyoshi HamanakaKazuichi Umeda (1 patent)Hiroyoshi HamanakaTakashi Amagai (1 patent)Hiroyoshi HamanakaMamoru Shinano (1 patent)Hiroyoshi HamanakaTakashi Shishito (1 patent)Hiroyoshi HamanakaHiroyoshi Hamanaka (8 patents)Tetsuji KakizakiTetsuji Kakizaki (13 patents)Toshio IkeuchiToshio Ikeuchi (7 patents)Tadao GotoTadao Goto (3 patents)Kazuichi UmedaKazuichi Umeda (1 patent)Takashi AmagaiTakashi Amagai (1 patent)Mamoru ShinanoMamoru Shinano (1 patent)Takashi ShishitoTakashi Shishito (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (4 from 832,812 patents)

2. Mitsubishi Petrochemical Company Limited (2 from 546 patents)

3. Toho Chemical Industry Co., Ltd. (2 from 24 patents)


8 patents:

1. 7229561 - Method of in-pipe activation of running water and in-pipe activator for running water as well as method of maintaining body temperature by way of promoting blood flow

2. 6190703 - Subliming propolis solid composition and process for the preparation thereof

3. 5002991 - Permanent antistatic resin composition

4. 5002992 - Permanent antistatic resin composition

5. 4662558 - Spatter preventing method

6. 4385184 - Cationic surface active agents

7. 4346087 - Antibacterial surface active agent containing azaalkenelactam

8. 4192759 - Automotive brake fluid compositions including semipolar borates and

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as of
12/20/2025
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