Growing community of inventors

Tokyo, Japan

Yoshio Hirai

Average Co-Inventor Count = 1.81

ph-index = 4

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 = 185

Yoshio HiraiMigaku Suzuki (10 patents)Yoshio HiraiMasaru Tsubata (1 patent)Yoshio HiraiSadayoshi Terada (1 patent)Yoshio HiraiMie Takahashi (1 patent)Yoshio HiraiMiyuki Saisaka (1 patent)Yoshio HiraiYoshio Hirai (13 patents)Migaku SuzukiMigaku Suzuki (86 patents)Masaru TsubataMasaru Tsubata (1 patent)Sadayoshi TeradaSadayoshi Terada (1 patent)Mie TakahashiMie Takahashi (1 patent)Miyuki SaisakaMiyuki Saisaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daio Paper Corporation (10 from 387 patents)

2. Seiko Instruments Inc (1 from 2,899 patents)

3. Seiko Instruments & Electronics Ltd. (1 from 127 patents)

4. New Oji Paper Co, Ltd. (1 from 57 patents)


13 patents:

1. 10675191 - Absorbent article with liquid impermeable surface sheet portion

2. 10470942 - Absorbent article and production method thereof

3. 10350118 - Absorbent article with new leg gathers

4. 9968495 - Absorbent article provided with a bodily fluid reception canal

5. 9782304 - Absorbent article with new leg gathers

6. 9636264 - Absorbent article

7. 9545343 - Absorbent article having a liquid-impermeable individual-wrapping sheet with a liquid-storing portion at a time of use

8. 9539152 - Absorbent article with new leg gathers

9. 9375364 - Absorbent article

10. 9247775 - Mask

11. 5624424 - Disposable diaper

12. 5126809 - Semiconductor non-volatile memory

13. 4904946 - Method for evaluating insulating films

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1/7/2026
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