Inventor

NAGATA SHIGEYOSHI

JP8 patents

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

OVAL ENG CO LTD

2 patents

US4329130AMay 11, 1982

Flow meter with helical toothed rotors having no pulsation and zero contact pressure

OVAL ENG CO LTD31 citations91

US4224015ASep 23, 1980

Positive displacement flow meter with helical-toothed rotors

OVAL ENG CO LTD30 citations90

EBARA CORP

2 patents

US5800151ASep 1, 1998

Screw rotor and method of generating tooth profile therefor

EBARA CORP12 citations73

US5697772ADec 16, 1997

Screw rotor and method of generating tooth profile therefor

EBARA CORP14 citations73

KYOUIKO GEAR MFG

1 patent

US4899609AFeb 13, 1990

Gears having a tooth-profile with a smaller relative of curvature at a contact point

KYOUIKO GEAR MFG31 citations87

KYOIKU HAGUROMA KOGYO KABUSHIK

1 patent

US5205679AApr 27, 1993

Rotary tool for generating bevel gears

KYOIKU HAGUROMA KOGYO KABUSHIK10 citations67

HITACHI POWDERED METALS

1 patent

US7048666B2May 23, 2006

Silent chain power transmitting apparatus

HITACHI POWDERED METALS5 citations61

TECHNOMAX EIGHTY FIVE KK

1 patent

US4971487ANov 20, 1990

Method for cutting involute gears

TECHNOMAX EIGHTY FIVE KK1 citations44