NI

Norikazu IGARASHI

Ricoh Company: 9 patents #2,462 of 9,818Top 30%
Overall (All Time): #534,421 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12265225 Light guide member and display device Naoki Nakamura, Masahiro Itoh, Susumu Momma, Shigenobu Hirano, Yoshifumi Sudoh +6 more 2025-04-01
12181673 Propagation optical system and virtual image display device Yoshifumi Sudoh, Naoki Nakamura, Masahiro Itoh, Susumu Momma, Shun OKAZAKI +7 more 2024-12-31
12099207 Virtual image display device Naoki Nakamura, Shiori OHSUGI, Shigenobu Hirano, Yasuo Katano, Kenji Kameyama +6 more 2024-09-24
11960096 Head-mounted display device containing relay optical system between image display unit and light guide member and display system Shigenobu Hirano, Yasuo Katano, Kenji Kameyama, Satomi Tanaka, Naoki Nakamura 2024-04-16
11656461 Head-mounted display device with adjuster Aino Hasegawa, Shigenobu Hirano, Yasuo Katano, Kenji Kameyama, Naoki Nakamura +4 more 2023-05-23
11143870 Display apparatus and display method Shigenobu Hirano, Yasuo Katano, Kenji Kameyama, Takashi Maki, Yuuto GOTOH +4 more 2021-10-12
10670421 Apparatus, system, and method of information sharing, and recording medium Yuuto GOTOH, Shigenobu Hirano, Ikue Kawashima, Yasuo Katano, Takashi Maki +5 more 2020-06-02
9020406 Image forming apparatus and method of correcting color registration error Naruhiro Masui 2015-04-28
8862002 Image forming apparatus and method Naruhiro Masui 2014-10-14