Inventor

SHIRATANI RYUJI

JP24 patents

⚠️ This page may combine multiple inventors who share the name “SHIRATANI RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CONSTRUCTION MACHINERY CO LTD

10 patents

US11746497B2Sep 5, 2023

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD2 citations71

US12018460B2Jun 25, 2024

Excavator

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations62

US12286769B2Apr 29, 2025

Work machine and assist device to assist in work with work machine

SUMITOMO CONSTRUCTION MACHINERY CO LTD1 citations61

US11761168B2Sep 19, 2023

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations61

US12116751B2Oct 15, 2024

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations60

US12173479B2Dec 24, 2024

Shovel, display device for shovel, and control device for shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations59

US12540449B2Feb 3, 2026

Shovel and method of controlling shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations51

US12378751B2Aug 5, 2025

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations51

US12428805B2Sep 30, 2025

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations50

US12385219B2Aug 12, 2025

Shovel

SUMITOMO CONSTRUCTION MACHINERY CO LTD0 citations50

SUMITOMO SHI CONSTR MACH CO

8 patents

US10053835B2Aug 21, 2018

Shovel

SUMITOMO SHI CONSTR MACH CO2 citations72

US9127434B2Sep 8, 2015

Electrical swivel working machine

SUMITOMO SHI CONSTR MACH CO5 citations71

US10106955B2Oct 23, 2018

Turning control apparatus

SUMITOMO SHI CONSTR MACH CO3 citations70

US11186964B2Nov 30, 2021

Shovel

SUMITOMO SHI CONSTR MACH CO2 citations65

US11879589B2Jan 23, 2024

Shovel

SUMITOMO SHI CONSTR MACH CO0 citations61

US8924064B2Dec 30, 2014

Shovel and method of controlling shovel

SUMITOMO SHI CONSTR MACH CO2 citations61

US9995318B2Jun 12, 2018

Hybrid shovel and hybrid shovel control method

SUMITOMO SHI CONSTR MACH CO0 citations51

US9284717B2Mar 15, 2016

Swivel control apparatus and method

SUMITOMO SHI CONSTR MACH CO1 citations51

MAGAKI HIDETO

4 patents

US8972122B2Mar 3, 2015

Shovel and method for controlling shovel

MAGAKI HIDETO13 citations82

US9593466B2Mar 14, 2017

Hydraulic shovel and method of controlling hydraulic shovel

MAGAKI HIDETO2 citations71

US9249556B2Feb 2, 2016

Shovel and method for controlling shovel

MAGAKI HIDETO5 citations71

US8775033B2Jul 8, 2014

Shovel and method of controlling shovel

MAGAKI HIDETO4 citations71

SUMITOMO(S H I ) CONSTRUCTION MACHINERY CO LTD

1 patent

US9650761B2May 16, 2017

Shovel and method of controlling shovel

SUMITOMO(S H I ) CONSTRUCTION MACHINERY CO LTD2 citations71

SUMITOMO HEAVY INDUSTRIES

1 patent

US9382691B2Jul 5, 2016

Hybrid work machine and method of controlling same

SUMITOMO HEAVY INDUSTRIES0 citations41