TS

Toshiaki Sugawara

DE Dexerials: 17 patents #19 of 387Top 5%
KC Kuraray Co.: 3 patents #492 of 1,827Top 30%
MC Mizusawa Industrial Chemicals: 3 patents #21 of 90Top 25%
FC Fukuvi Chemical Industry Co.: 1 patents #10 of 48Top 25%
KK Kabushiki Kaisha Meiji Gomu Kasei: 1 patents #6 of 38Top 20%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #157,936 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12235481 Polarizing plate Shigeshi Sakakibara, Akio Takada, Kazuyuki Shibuya, Yuusuke Matsuno 2025-02-25
11971568 Polarizing plate, manufacturing method thereof, and optical device Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2024-04-30
11966068 Inorganic wave plate and manufacturing method therefor Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno 2024-04-23
11579350 Wire grid polarization plate having dielectric layer with concave portions Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2023-02-14
11573362 Optical element and projection image display apparatus Junichi Sugawara, Yoshi Kanega 2023-02-07
11543702 Polarizer and optical apparatus Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2023-01-03
11500140 Polarizing plate and optical apparatus having tip portions with continuous curved surface Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2022-11-15
11385389 Polarizing plate having discontinuous water-repellent portion and manufacturing method thereof Kazuyuki Shibuya, Shigeshi Sakabara, Yusuke Matsuno, Akio Takada 2022-07-12
11294114 Optical element and projection image display apparatus Junichi Sugawara, Yoshi Kanega 2022-04-05
11249233 Thin film for optical element, method of manufacturing thin film for optical element, inorganic polarizing plate, method of manufacturing inorganic polarizing plate, optical element, and optical device Akio Takada 2022-02-15
11112550 Polarizing plate, optical apparatus and method of manufacturing polarizing plate Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2021-09-07
11086062 Circumferentially light-emitting type thermoplastic resin molded body Naoaki KANAMORI, Hiroshi Oshima, Dai Kataoka 2021-08-10
11029458 Polarizing plate and optical apparatus including the same Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno 2021-06-08
11009789 Pattern formation method and method for manufacturing polarizing plate Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2021-05-18
10996388 Manufacturing method of phase difference element, phase difference element, and projection image display device Junichi Sugawara, Yoshi Kanega 2021-05-04
10935697 Resin composition including acrylic block copolymer and light diffusing agent Makoto AKAI, Dai Kataoka 2021-03-02
10928574 Polarizing plate, production method thereof and optical apparatus Kazuyuki Shibuya, Shigeshi Sakakibara, Yusuke Matsuno, Akio Takada 2021-02-23
10563001 Acrylic block copolymer, resin composition and shaped article including the same, and optical component Hiroshi Oshima 2020-02-18
10436964 Inorganic polarizing plate, method of manufacturing the same, and optical instrument Akio Takada, Seiji Kumagai, Hideto Sagawa, Takahiro Kimura, Kazuyuki Shibuya +2 more 2019-10-08
10042176 Polarization conversion element, polarization-conversion-element manufacturing method, light-source unit, and optical device Koji Sasaki, Masatoshi Sasaki, Nobuyuki Koike, Akio Takada, Katsuhiro Shindo +2 more 2018-08-07
6853280 Method of magnetizing magnetic sheet and magnetization apparatus Shinichi Matsumura, Kazuto Kawamata, Eiji Ohta 2005-02-08
5648413 Stabilizer for chlorine-containing polymers, process for the preparation thereof and chlorine-containing polymer composition Teiji Sato, Toshio Sato, Hiroshi Sawada, Seiji Wakaki, Satoru Ohta +1 more 1997-07-15
4871498 Process for preparation of granular stabilizer for chlorine-containing polymers Seiichi Nakamura, Mamoru Saito 1989-10-03
4659506 Granular stabilizer for chlorine-containing polymers and process for preparation thereof Seiichi Nakamura, Mamoru Saito 1987-04-21
4208015 Method of regeneration of plastics material by removing outer deteriorated layer Masanao Fujita, Keizo Oosaki 1980-06-17