P

Inventor

KOYAMA HIDEAKI

JP9 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA HIDEAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SANYO ELECTRIC CO

3 patents
US4343977AAug 10, 1982

Electronic controlled heat cooking apparatus

SANYO ELECTRIC CO9 citations71
US4367387AJan 4, 1983

Electronic controlled heat cooking apparatus

SANYO ELECTRIC CO17 citations68
US4394557AJul 19, 1983

Electronic controlled heat cooking apparatus

SANYO ELECTRIC CO4 citations57

HITACHI LTD

2 patents
US7728545B2Jun 1, 2010

Equipment with a built-in fuel cell

HITACHI LTD14 citations82
US7626353B2Dec 1, 2009

Mobile type information terminal and self diagnosis method and operation method thereof

HITACHI LTD14 citations80

NEC ELECTRONICS CORP

1 patent
US7626366B2Dec 1, 2009

Power supply circuit capable of reducing the number of external components

NEC ELECTRONICS CORP2 citations62

NEC CORP

1 patent
US6246056B1Jun 12, 2001

Earth sensor

NEC CORP5 citations60

RENESAS ELECTRONICS CORP

1 patent
US8742962B2Jun 3, 2014

Semiconductor device and sensor system

RENESAS ELECTRONICS CORP2 citations52

ROLAND CORP

1 patent
US11810541B2Nov 7, 2023

Electronic musical instrument, power control device for electronic musical instrument, and power control method

ROLAND CORP0 citations50