KT

Keisuke TSUBONOYA

NI Nikon: 7 patents #587 of 2,493Top 25%
Overall (All Time): #686,098 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12372761 Variable magnification optical system, optical equipment, and method for producing variable magnification optical system 2025-07-29
12092804 Optical system, optical apparatus and method for manufacturing the optical system 2024-09-17
12072476 Optical system, optical apparatus, and method of manufacturing optical system Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa +2 more 2024-08-27
12025779 Optical system, optical equipment, and manufacturing method for optical system Hiroki Harada, Toshinori Take 2024-07-02
11971540 Optical system, optical apparatus, and method of manufacturing optical system Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa +2 more 2024-04-30
11733499 Optical system, optical apparatus and method for manufacturing the optical system 2023-08-22
11686926 Optical system, optical apparatus, and method of manufacturing optical system Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa +2 more 2023-06-27