AO

Akihiko Obama

NI Nikon: 49 patents #40 of 2,493Top 2%
Overall (All Time): #55,608 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDate
12298485 Variable magnification optical system, optical device, and method for producing variable magnification optical system Masashi Yamashita 2025-05-13
12072477 Variable magnification optical system, optical device, and method for manufacturing variable magnification optical system Tomoyuki Sashima 2024-08-27
11892610 Variable magnification optical system, optical device, and method for producing variable magnification optical system Masashi Yamashita 2024-02-06
11714268 Variable magnification optical system, optical device, and method for manufacturing variable magnification optical system Tomoyuki Sashima 2023-08-01
11653096 Calculation device, interchangeable lens, camera body, and imaging device Satoshi Kazahaya, Yuki Kinouchi, Satoru Shibata 2023-05-16
11579421 Zoom lens, optical apparatus, and method for manufacturing zoom lens Norikazu Yokoi, Issei Tanaka 2023-02-14
11385446 Zoom optical system, optical device and method for manufacturing the zoom optical system Kensuke Uchida 2022-07-12
11294155 Variable magnification optical system, optical device, and method for manufacturing variable magnification optical system Tomoyuki Sashima 2022-04-05
10948700 Variable magnification optical system, optical device, and method for producing variable magnification optical system 2021-03-16
10895721 Zoom lens, optical apparatus, and method for manufacturing zoom lens Norikazu Yokoi, Issei Tanaka 2021-01-19
10831005 Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing method Kensuke Uchida, Hiroshi Yamamoto, Taku Matsuo 2020-11-10
10831007 Variable magnification optical system, optical device, and method for producing variable magnification optical system Masashi Yamashita 2020-11-10
10466453 Optical system and optical device provided therewith Hiroyuki Ishigami, Kunihiko Shimizu, Takuji Hamasaki 2019-11-05
10451858 Zoom optical system, optical device and method for manufacturing the zoom optical system Kensuke Uchida 2019-10-22
10317654 Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing method Kensuke Uchida, Norikazu Yokoi, Hiroshi Yamamoto, Taku Matsuo 2019-06-11
10234663 Variable power optical system, optical device, and method of manufacturing variable power optical system Tomoyuki Sashima 2019-03-19
10203488 Zoom lens, optical apparatus, and method for manufacturing zoom lens Norikazu Yokoi, Issei Tanaka 2019-02-12
10185130 Variable magnification optical system, optical device, and method for manufacturing variable magnification optical system Tomoyuki Sashima 2019-01-22
10168512 Variable magnification optical system, optical device, and production method for variable magnification optical system Tomoyuki Sashima 2019-01-01
10126535 Variable magnification optical system, optical device, and production method for variable magnification optical system Tomoyuki Sashima 2018-11-13
9989744 Variable magnification optical system, optical device, and method for producing variable magnification optical system Masashi Yamashita 2018-06-05
9983391 Variable power optical assembly, optical device, and variable power optical assembly fabrication method Tomoyuki Sashima 2018-05-29
9874730 Variable magnification optical system, optical device, and production method for variable magnification optical system Tomoyuki Sashima 2018-01-23
9709779 Variable magnification optical system, optical device, and method for producing variable magnification 2017-07-18
9684154 Zooming optical system, optical apparatus and method for manufacturing zooming optical system 2017-06-20