Growing community of inventors

Tokyo, Japan

Hirofumi Katada

Average Co-Inventor Count = 2.12

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 = 176

Hirofumi KatadaHiroyuki Matsuyama (4 patents)Hirofumi KatadaHiroshi Tsuji (1 patent)Hirofumi KatadaTetsuya Taniguchi (1 patent)Hirofumi KatadaKoji Ikarashi (1 patent)Hirofumi KatadaHirofumi Katada (6 patents)Hiroyuki MatsuyamaHiroyuki Matsuyama (9 patents)Hiroshi TsujiHiroshi Tsuji (1 patent)Tetsuya TaniguchiTetsuya Taniguchi (1 patent)Koji IkarashiKoji Ikarashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pola Chemical Industries, Inc. (6 from 94 patents)


6 patents:

1. D321644 - Cosmetic container

2. D321645 - Cosmetic container

3. D321643 - Cosmetic container

4. D319178 - Collapsible tube

5. 4562923 - Cosmetics case

6. 4526273 - Portable cosmetics case

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as of
1/13/2026
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