Inventor
SAITO KENGO
JP27 patents
⚠️ This page may combine multiple inventors who share the name “SAITO KENGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
12 patentsUS5239436AAug 24, 1993
Tape cartridge with increased tape capacity
SONY CORP21 citations91
US5982592ANov 9, 1999
Magnetic tape stabilizer for a recording and playback device
SONY CORP32 citations90
US5287240AFeb 15, 1994
Tape cassette
SONY CORP7 citations72
US5204796AApr 20, 1993
Tape cassette with tape tension controlled by grease of a specified range of viscosity
SONY CORP14 citations72
US5097374AMar 17, 1992
Tape cassette having tapered guide pins press-fitted into cassette wall and grease lubricant for rollers
SONY CORP11 citations72
US5847906ADec 8, 1998
Recording/reproducing apparatus, magnetic head and tape cartridge
SONY CORP8 citations71
US5917684AJun 29, 1999
Magnetic head apparatus, tape cartridge and recording/reproducing apparatus for increasing tape stability
SONY CORP2 citations63
US5850316ADec 15, 1998
Tape cartridge and driving system having rotation detection unit for drive roll to maintain constant contact pressure with the capstan roll
SONY CORP4 citations63
US5785268AJul 28, 1998
Tape cartridge with tape tension differential attenuating tape guide arrangement
SONY CORP6 citations63
US5872692AFeb 16, 1999
Recording/reproducing apparatus, magnetic head and tape cartridge
SONY CORP3 citations60
US6297920B1Oct 2, 2001
Information reproduction apparatus
SONY CORP2 citations53
US4625247ANov 25, 1986
Disk drive
SONY CORP2 citations53
FUJIFILM CORP
10 patentsUS11339329B2May 24, 2022
Polarizer and image display device
FUJIFILM CORP4 citations73
US11001653B2May 11, 2021
Optical film, polarizing plate, and image display device
FUJIFILM CORP2 citations73
US12085742B2Sep 10, 2024
Anisotropic light absorption film and laminate
FUJIFILM CORP2 citations72
US12204200B2Jan 21, 2025
Polarizer and image display device
FUJIFILM CORP0 citations60
US11921369B2Mar 5, 2024
Polarizer and image display device
FUJIFILM CORP0 citations60
US12032188B2Jul 9, 2024
Optically anisotropic film, optical film, and display device
FUJIFILM CORP0 citations59
US11768323B2Sep 26, 2023
Polarizer and image display device
FUJIFILM CORP0 citations51
US11543697B2Jan 3, 2023
Polarizer and image display device
FUJIFILM CORP0 citations51
US10692522B2Jun 23, 2020
Magnetic recording medium having characterized magnetic layer and method for manufacturing same
FUJIFILM CORP0 citations51
US12065605B2Aug 20, 2024
Liquid crystal composition, dichroic material, light absorption anisotropic film, laminate, and image display device
FUJIFILM CORP0 citations47