Tomu Takeda — 14 Patents at Dexerials

Tomu Takeda has been granted 14 US patents while listed as an inventor at Dexerials. The first was granted in 2019 and the most recent in October 2025. Tomu Takeda ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Tomu Takeda in Tokyo, JP.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date
12455472	Optical device	Hideto Sagawa	2025-10-28
12449581	Polarizing plate, method of manufacturing the same and optical apparatus	—	2025-10-21
11867938	Polarizing plate having outermost layer of anti-reflection layer recessed towards substrate	Hiroyuki Takahashi	2024-01-09
11782200	Polarizing plate having specified water contact angle of antireflection layer surface	Hiroyuki Takahashi	2023-10-10
11754766	Polarizing element, polarizing element manufacturing method, and optical device	—	2023-09-12
11644605	Polarizing element having alternately laminated dielectric layers and conductive layers and method for manufacturing polarizing element	Hideto Sagawa	2023-05-09
11630254	Wire grid polarizing plate having trapezoidal absorption layer	—	2023-04-18
11543573	Polarizing plate and optical apparatus containing same	Hideto Sagawa	2023-01-03
10890703	Polarizing plate, polarizing plate manufacturing method, and optical apparatus having specified minimum width of absorption layer	—	2021-01-12
10859743	Polarizing element, polarizing element manufacturing method, and optical device	—	2020-12-08
10698148	Polarizing element and method of producing same	Hideto Sagawa	2020-06-30
10698147	Polarizing element	—	2020-06-30
10209420	Polarizing plate, method of manufacturing the same, and optical apparatus	—	2019-02-19
10209421	Polarizing plate, method of manufacturing the same, and optical apparatus	—	2019-02-19

Tomu Takeda — 14 Patents

Issued Patents All Time

Patent Widget