Inventor
TANAKA ISSEI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA ISSEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIKON CORP
12 patentsUS4870452ASep 26, 1989
Projection exposure apparatus
NIKON CORP56 citations96
US7336421B2Feb 26, 2008
Optical system with anti-reflection coating
NIKON CORP13 citations84
US10203488B2Feb 12, 2019
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP4 citations83
US9726869B2Aug 8, 2017
Variable magnification optical system, optical device, and production method for variable magnification optical system
NIKON CORP2 citations73
US9354430B2May 31, 2016
Zoom lens, imaging apparatus, and method for manufacturing zoom lens
NIKON CORP3 citations73
US11579421B2Feb 14, 2023
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP0 citations62
US10895721B2Jan 19, 2021
Zoom lens, optical apparatus, and method for manufacturing zoom lens
NIKON CORP0 citations62
US7286293B2Oct 23, 2007
Method of fabricating diffractive optical element
NIKON CORP2 citations62
US7256939B2Aug 14, 2007
Diffractive optical element and fabrication method thereof
NIKON CORP4 citations62
US7256948B2Aug 14, 2007
Anti-reflection coating, and optical element and optical system with anti-reflection coating
NIKON CORP5 citations61
US9753271B2Sep 5, 2017
Eyepiece lens, viewfinder optical system and optical apparatus equipped with the same, and method for manufacturing eyepiece lens
NIKON CORP0 citations52
US10302905B2May 28, 2019
Optical system, image-capturing device comprising optical system and method for manufacturing optical system
NIKON CORP0 citations42
TANAKA ISSEI
4 patentsUS8721094B2May 13, 2014
Lens system and optical apparatus
TANAKA ISSEI10 citations82
US8605370B2Dec 10, 2013
Imaging lens, optical apparatus equipped therewith, and method for manufacturing imaging lens
TANAKA ISSEI4 citations61
US8836928B2Sep 16, 2014
Method for measuring wavefront aberration and wavefront aberration measuring apparatus
TANAKA ISSEI0 citations51
US9030755B2May 12, 2015
Zoom lens system, optical apparatus, and method for manufacturing zoom lens system
TANAKA ISSEI1 citations50