Growing community of inventors

Nagoya, Japan

Takafumi Ohto

Average Co-Inventor Count = 3.90

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 = 9

Takafumi OhtoRyuki Kan (9 patents)Takafumi OhtoOsamu Masuda (5 patents)Takafumi OhtoAkihiro Muramatsu (3 patents)Takafumi OhtoAkifumi Aono (2 patents)Takafumi OhtoMasayoshi Hino (2 patents)Takafumi OhtoThomas Overthun (1 patent)Takafumi OhtoSho Tanaka (1 patent)Takafumi OhtoThomas Brisebras (1 patent)Takafumi OhtoHortense Desodt (1 patent)Takafumi OhtoMartin Kay (1 patent)Takafumi OhtoEiichiro Hikosaka (1 patent)Takafumi OhtoTsuyoshi Kamibeppu (1 patent)Takafumi OhtoYoshinobu Okada (4 patents)Takafumi OhtoHirofumi Asada (1 patent)Takafumi OhtoChris Hill (1 patent)Takafumi OhtoTakafumi Ohto (9 patents)Ryuki KanRyuki Kan (16 patents)Osamu MasudaOsamu Masuda (5 patents)Akihiro MuramatsuAkihiro Muramatsu (18 patents)Akifumi AonoAkifumi Aono (10 patents)Masayoshi HinoMasayoshi Hino (9 patents)Thomas OverthunThomas Overthun (127 patents)Sho TanakaSho Tanaka (51 patents)Thomas BrisebrasThomas Brisebras (27 patents)Hortense DesodtHortense Desodt (24 patents)Martin KayMartin Kay (20 patents)Eiichiro HikosakaEiichiro Hikosaka (6 patents)Tsuyoshi KamibeppuTsuyoshi Kamibeppu (4 patents)Yoshinobu OkadaYoshinobu Okada (4 patents)Hirofumi AsadaHirofumi Asada (4 patents)Chris HillChris Hill (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Chemicals, Inc. (8 from 1,788 patents)

2. Carl Zeiss Vision International Gmbh (1 from 227 patents)


9 patents:

1. 12210222 - Frame and eyewear

2. 11934045 - Eyewear, and non-transitory computer-readable recording medium

3. 11614641 - Eyewear

4. 11561412 - Eyewear

5. 11402668 - Frame component, temple, frame, and eyewear

6. 11294199 - Eyewear

7. 11294204 - Sensor module, temple, frame and eyewear

8. D860304 - Eyeglasses

9. D848523 - Eyeglasses

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as of
1/9/2026
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