Inventor
NAGATA TATSUO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “NAGATA TATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS6344857B1Feb 5, 2002
Gamma correction circuit
HITACHI LTD37 citations92
US6195132B1Feb 27, 2001
Noise reduction signal processing circuit and display apparatus
HITACHI LTD44 citations92
US6151079ANov 21, 2000
Image display apparatus having a circuit for magnifying and processing a picture image in accordance with the type of image signal
HITACHI LTD19 citations92
US5243421ASep 7, 1993
Signal processor for a wide televison receiver
HITACHI LTD40 citations92
US6078702AJun 20, 2000
Image display apparatus
HITACHI LTD3 citations62
US5953075ASep 14, 1999
Video signal processing apparatus with means for magnifying and processing a picture image correspondingly to video signals
HITACHI LTD5 citations62
NIPPON STEEL & SUMITOMO METAL CORP
5 patentsUS10270092B2Apr 23, 2019
Negative electrode active material, negative electrode and battery
NIPPON STEEL & SUMITOMO METAL CORP2 citations72
US10230103B2Mar 12, 2019
Negative electrode active material, negative electrode and battery
NIPPON STEEL & SUMITOMO METAL CORP2 citations72
US10128493B2Nov 13, 2018
Negative electrode active material, negative electrode and battery
NIPPON STEEL & SUMITOMO METAL CORP2 citations72
US10038184B2Jul 31, 2018
Negative electrode active material, negative electrode and battery
NIPPON STEEL & SUMITOMO METAL CORP3 citations71
US11056687B2Jul 6, 2021
Negative electrode active material, negative electrode, and battery
NIPPON STEEL & SUMITOMO METAL CORP0 citations61
NIPPON STEEL CORP
4 patentsUS11387449B2Jul 12, 2022
Negative electrode active material, negative electrode, and battery
NIPPON STEEL CORP2 citations72
US12494533B2Dec 9, 2025
Battery case and method of production of same
NIPPON STEEL CORP0 citations61
US11981108B2May 14, 2024
Ni-plated steel sheet and manufacturing method thereof
NIPPON STEEL CORP0 citations60
US12199277B2Jan 14, 2025
Negative electrode active material, negative electrode, and battery
NIPPON STEEL CORP0 citations50
NIPPON STEEL CHEMICAL & MAT CO LTD
2 patentsUS12334563B2Jun 17, 2025
Ni-plated steel foil for nickel-hydrogen secondary battery current collector, nickel-hydrogen secondary battery current collector, and nickel-hydrogen secondary battery
NIPPON STEEL CHEMICAL & MAT CO LTD0 citations61
US12100844B2Sep 24, 2024
Stainless foil current collector for secondary battery positive electrodes
NIPPON STEEL CHEMICAL & MAT CO LTD0 citations61
YAMAMOTO HIROSHI
2 patentsUS8404385B2Mar 26, 2013
Mixed carbon material including graphite powder cores and surface carbon material on a surface thereof and negative electrode for nonaqueous secondary battery
YAMAMOTO HIROSHI2 citations61
US8501047B2Aug 6, 2013
Mixed carbon material and negative electrode for a nonaqueous secondary battery
YAMAMOTO HIROSHI1 citations51
NEGI NORIYUKI
2 patentsUS9028711B2May 12, 2015
Negative electrode material for a nonaqueous electrolyte secondary battery and a method for its manufacture
NEGI NORIYUKI2 citations57
US8591765B2Nov 26, 2013
Negative electrode material for nonaqueous electrolyte secondary batteries and manufacturing method thereof
NEGI NORIYUKI0 citations44