Inventor

OYAMA SEIJI

JP4 patents

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

HITACHI LTD

2 patents

US5583985ADec 10, 1996

Graphic display processing apparatus for improving speed and efficiency of a window system

HITACHI LTD14 citations71

US11426145B2Aug 30, 2022

Ultrasonic diagnostic apparatus, tracing method, and program

HITACHI LTD0 citations39

HITACHI CHUBU SOFTWARE KK

1 patent

US5353403AOct 4, 1994

Graphic display processing apparatus and method for improving the speed and efficiency of a window system

HITACHI CHUBU SOFTWARE KK26 citations86

FURUSHIMA KIYOSHI

1 patent

US8308622B2Nov 13, 2012

Centrifugally cast composit roll

FURUSHIMA KIYOSHI6 citations77