Inventor

NAKAJIMA KATSURA

JP5 patents

⚠️ This page may combine multiple inventors who share the name “NAKAJIMA KATSURA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NISCA CORP

4 patents

US6842301B2Jan 11, 2005

ND filter and aperture device including the same

NISCA CORP7 citations68

US6842302B2Jan 11, 2005

ND filter, method for producing the ND filter, and aperture device including the ND filter

NISCA CORP8 citations68

US7685698B2Mar 30, 2010

Manufacturing method of magnet rotor

NISCA CORP2 citations54

US7960876B2Jun 14, 2011

Magnet rotor, electromagnetic drive device and light quantity adjustment device using the magnet rotor

NISCA CORP0 citations43

NAKAJIMA KATSURA

1 patent

US8654455B2Feb 18, 2014

Light quantity adjustment apparatus, lens unit and optical apparatus provided with the same

NAKAJIMA KATSURA0 citations31