P

Inventor

YOKOYAMA TAKAAKI

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

SANKEN ELECTRIC CO LTD

4 patents
US5133921AJul 28, 1992

Method for manufacturing plastic encapsulated electronic semiconductor devices

SANKEN ELECTRIC CO LTD39 citations90
US5049055ASep 17, 1991

Mold assembly

SANKEN ELECTRIC CO LTD33 citations90
US4954307ASep 4, 1990

Method for manufacturing plastic encapsulated electronic semiconductor devices

SANKEN ELECTRIC CO LTD34 citations90
US7759697B2Jul 20, 2010

Semiconductor device

SANKEN ELECTRIC CO LTD2 citations60

AIST

2 patents
US11594353B2Feb 28, 2023

Magnetic powder containing Sm—Fe—N-based crystal particles, sintered magnet produced from same, method for producing said magnetic powder, and method for producing said sintered magnet

AIST0 citations61
US12371763B2Jul 29, 2025

Sm—Fe—N-based magnet powder, Sm—Fe—N-based sintered magnet, and production method therefor

AIST0 citations57

KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA

1 patent
US7891066B2Feb 22, 2011

Plate material vertical processing line

KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA11 citations79

KAO CORP

1 patent
US5487903AJan 30, 1996

Method for improving the qualities of meat and meat piece treated thereby

KAO CORP2 citations62

ASAHI GLASS CO LTD

1 patent
US6297412B1Oct 2, 2001

Process for purifying difluoromethane

ASAHI GLASS CO LTD1 citations51