Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |