Inventor
EBATA YOSHISADA
JP15 patents
⚠️ This page may combine multiple inventors who share the name “EBATA YOSHISADA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI HIGH TECH CORP
9 patentsUS9945993B2Apr 17, 2018
Curved grating, method for manufacturing the same, and optical device
HITACHI HIGH TECH CORP2 citations72
US9709714B2Jul 18, 2017
Curved face diffraction grating fabrication method, curved face diffraction grating cast, and curved face diffraction grating employing same
HITACHI HIGH TECH CORP2 citations71
US11366255B2Jun 21, 2022
Concave diffraction grating, method for producing the same, and optical device
HITACHI HIGH TECH CORP0 citations60
US12517289B2Jan 6, 2026
Method for manufacturing concave diffraction grating, and optical device
HITACHI HIGH TECH CORP0 citations50
US12487383B2Dec 2, 2025
Concave diffraction grating and optical device
HITACHI HIGH TECH CORP0 citations50
US12591083B2Mar 31, 2026
Method for manufacturing diffraction grating and method for manufacturing replica grating
HITACHI HIGH TECH CORP0 citations48
US11391871B2Jul 19, 2022
Manufacturing method of concave diffraction grating, concave diffraction grating, and analyzer using the same
HITACHI HIGH TECH CORP0 citations48
US9104118B2Aug 11, 2015
Exposure device and method for producing structure
HITACHI HIGH TECH CORP0 citations48
US12360298B2Jul 15, 2025
Diffraction grating, method for manufacturing diffraction grating, and photomask
HITACHI HIGH TECH CORP0 citations47
HITACHI LTD
5 patentsUS5822059AOct 13, 1998
Atomic absorption spectrophotometer and graphite tube type cuvette used for the same
HITACHI LTD8 citations73
US5786887AJul 28, 1998
Atomic absorption spectrophotometer and atomic absorption spectrochemical analysis
HITACHI LTD13 citations72
US5801827ASep 1, 1998
Analysis device using chemical combustion flame
HITACHI LTD2 citations61
US4981357AJan 1, 1991
Spectrophotometer having functions of both a double-monochromater and a single-monochromater
HITACHI LTD2 citations60
US7050164B2May 23, 2006
Spectrophotometer
HITACHI LTD1 citations42