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USPTO Patent Rankings Data through Dec 31, 2025
Home › Toyochem Co. › Tsutomu Hayasaka
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Tsutomu Hayasaka — 5 Patents

TCToyochem Co.: 5 patents #1 of 37Top 3%
TCToyo Ink Sc Holdings Co.: 4 patents #11 of 144Top 8%
ACArtience Co.: 1 patents #10 of 29Top 35%
Tokyo, JP: #26,440 of 90,295 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Tsutomu Hayasaka has been granted 5 US patents while listed as an inventor at Toyochem Co.. The first was granted in 2017 and the most recent in May 2024. Tsutomu Hayasaka ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Tsutomu Hayasaka in Tokyo, JP.

Patents per Year

Patents granted per year, 2017 to 2024Bar chart with a peak of 1 patents in 2017.peak 12017: 1 patents20172020: 1 patents20202021: 1 patents20212022: 1 patents20222024: 1 patents2024

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11990420 Electromagnetic wave shielding sheet Kazunori MATSUDO, Ryota Umezawa, Kenji Ando 2024-05-21
11533833 Electromagnetic wave shielding sheet and printed wiring board Daisuke Kishi, Shota Mori, Takahiro Matsuzawa 2022-12-20
11172599 Electromagnetic-wave shielding sheet and electronic component-mounted substrate Shota Mori, Kazunori MATSUDO, Kenji Ando 2021-11-09
10820457 Electromagnetic wave shielding sheet and printed wiring board Daisuke Kishi, Shota Mori, Takahiro Matsuzawa 2020-10-27
9549473 Printed wiring board, printed wiring board manufacturing method, and electronic device Satoshi Nishinohara, Hidenobu Kobayashi, Kazunori MATSUDO 2017-01-17

Frequent Collaborators

Kazunori MATSUDO3 shared
Shota Mori3 shared
Daisuke Kishi2 shared
Takahiro Matsuzawa2 shared
Kenji Ando2 shared
Ryota Umezawa1 shared

Nearby-Ranked Inventors

Joseph L. Mann5
Terry Richard Linn5
Ikuo DEGUCHI5
Swapnil Kumar5
Zachary W. Gyugyi5
Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5