Inventor
AZUMA SHUHEI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “AZUMA SHUHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
14 patentsUS10032472B2Jul 24, 2018
Magnetic-disk glass substrate
HOYA CORP9 citations83
US12077465B2Sep 3, 2024
Method for manufacturing disk-shaped glass blank and method for manufacturing glass substrate for magnetic disk
HOYA CORP2 citations72
US11884582B2Jan 30, 2024
Method for manufacturing annular glass plate, method for manufacturing glass substrate for magnetic disk, and method for manufacturing magnetic disk
HOYA CORP2 citations72
US11211090B2Dec 28, 2021
Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate
HOYA CORP2 citations72
US11024335B2Jun 1, 2021
Magnetic-disk glass substrate
HOYA CORP2 citations72
US10720180B2Jul 21, 2020
Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate
HOYA CORP4 citations72
US12406694B2Sep 2, 2025
Magnetic disk-use glass substrate manufacturing method, discoidal glass substrate, glass substrate, and magnetic disk-use glass substrate
HOYA CORP0 citations62
US12344545B2Jul 1, 2025
Method for manufacturing glass plate, method for manufacturing magnetic-disk glass substrate, and method for manufacturing magnetic disk
HOYA CORP0 citations62
US12266389B2Apr 1, 2025
Magnetic disk substrate, magnetic disk, annular-shaped substrate, and method for manufacturing magnetic disk substrate
HOYA CORP0 citations62
US12479751B2Nov 25, 2025
Method for producing glass plate, and laminate
HOYA CORP0 citations61
US11710505B2Jul 25, 2023
Magnetic-disk glass substrate, magnetic-disk glass substrate intermediate, and method for manufacturing magnetic-disk glass substrate
HOYA CORP0 citations61
US12595202B2Apr 7, 2026
Method for manufacturing glass plate including processing for chamfering edge surface
HOYA CORP0 citations51
US12330982B2Jun 17, 2025
Method for manufacturing glass plate, method for chamfering glass plate, and method for manufacturing magnetic disk
HOYA CORP0 citations51
US12084376B2Sep 10, 2024
Method for manufacturing glass substrate and method for manufacturing magnetic disk
HOYA CORP0 citations51
SUMITOMO CHEMICAL CO
4 patentsUS9380782B2Jul 5, 2016
Tetrazolinone compounds and its use
SUMITOMO CHEMICAL CO3 citations70
US12225904B2Feb 18, 2025
Phenylpyrazole compound and method for controlling plant disease
SUMITOMO CHEMICAL CO0 citations50
US10077254B2Sep 18, 2018
Tetrazolinone compound and use thereof
SUMITOMO CHEMICAL CO0 citations40
US9888688B2Feb 13, 2018
Tetrazolinone compounds and applications thereof
SUMITOMO CHEMICAL CO0 citations39