Inventor
OHTSU AKIHIKO
JP30 patents
⚠️ This page may combine multiple inventors who share the name “OHTSU AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJIFILM CORP
25 patentsUS10099317B2Oct 16, 2018
Soundproof structure and soundproof structure manufacturing method
FUJIFILM CORP12 citations84
US10577791B2Mar 3, 2020
Soundproof structure and soundproof system
FUJIFILM CORP2 citations73
US11841163B2Dec 12, 2023
Silencing system
FUJIFILM CORP2 citations72
US11536411B2Dec 27, 2022
Silencing tubular structure body
FUJIFILM CORP2 citations72
US12067963B2Aug 20, 2024
Soundproof structure body
FUJIFILM CORP0 citations62
US11869470B2Jan 9, 2024
Acoustic system
FUJIFILM CORP1 citations62
US11835253B2Dec 5, 2023
Silencing system
FUJIFILM CORP1 citations62
US11795974B2Oct 24, 2023
Blower with silencer and moving object with propeller
FUJIFILM CORP0 citations62
US11636839B2Apr 25, 2023
Soundproof structure body
FUJIFILM CORP1 citations62
US11493232B2Nov 8, 2022
Silencing system
FUJIFILM CORP1 citations62
US11332926B2May 17, 2022
Soundproof structure
FUJIFILM CORP1 citations62
US10902835B2Jan 26, 2021
Soundproof structure
FUJIFILM CORP1 citations62
US10248026B2Apr 2, 2019
Method for etching protective film, method for producing template, and template produced thereby
FUJIFILM CORP1 citations62
US12494400B2Dec 9, 2025
Method for inspecting chemical solution, method for producing chemical solution, method for controlling chemical solution, method for producing semiconductor device, method for inspecting resist composition, method for producing resist composition, method for controlling resist composition, and method for checking contamination status of semiconductor manufacturing apparatus
FUJIFILM CORP0 citations61
US10901561B2Jan 26, 2021
Conductive film, touch panel sensor, and touch panel
FUJIFILM CORP0 citations61
US11580948B2Feb 14, 2023
Soundproof system
FUJIFILM CORP0 citations52
US11257473B2Feb 22, 2022
Soundproof structure and opening structure
FUJIFILM CORP0 citations52
US10861432B2Dec 8, 2020
Soundproof structure and opening structure
FUJIFILM CORP0 citations52
US12474086B2Nov 18, 2025
Silencing device and air supply system
FUJIFILM CORP0 citations51
US12006953B2Jun 11, 2024
Blower with silencer
FUJIFILM CORP0 citations51
US11976673B2May 7, 2024
Blower with silencer
FUJIFILM CORP0 citations51
US11682374B2Jun 20, 2023
Soundproof structure body
FUJIFILM CORP0 citations51
US10847133B2Nov 24, 2020
Soundproof structure
FUJIFILM CORP0 citations51
US9308676B2Apr 12, 2016
Method for producing molds
FUJIFILM CORP0 citations48
US9897692B2Feb 20, 2018
Electromagnetic cloaking structure and method for manufacturing the same
FUJIFILM CORP0 citations41