Inventor

SUGAWARA ISAO

7 patents

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

HITS LAB I

2 patents

US5856712AJan 5, 1999

Uninterruptible power supply method

HITS LAB I76 citations94

US6236192B1May 22, 2001

AC voltage regulator

HITS LAB I19 citations82

CHIYODA CHEM ENG CONSTRUCT CO

1 patent

US5635826AJun 3, 1997

Input waveform follow-up AC power source system

CHIYODA CHEM ENG CONSTRUCT CO67 citations94

HITS LAB CORP I

1 patent

US6067243AMay 23, 2000

AC-AC/DC converter

HITS LAB CORP I41 citations89

TAISEI CORP

1 patent

US4217762AAug 19, 1980

Ice making equipment

TAISEI CORP24 citations81

NIPPON KOKAN KK

1 patent

US4010792AMar 8, 1977

Method for continuously casting steel

NIPPON KOKAN KK8 citations68

CHIYODA KK

1 patent

US4390939AJun 28, 1983

Electric power source device

CHIYODA KK3 citations55