P

Inventor

SAKAMOTO MASAYUKI

JP69 patents
⚠️ This page may combine multiple inventors who share the name “SAKAMOTO MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO RUBBER IND

25 patents
US5415216AMay 16, 1995

Passenger radial tire including bead reinforcement

SUMITOMO RUBBER IND41 citations92
US6257290B1Jul 10, 2001

Low-aspect tire

SUMITOMO RUBBER IND23 citations91
US5882452AMar 16, 1999

Method and apparatus for manufacturing tire with reduced radial runout

SUMITOMO RUBBER IND24 citations91
US6418993B1Jul 16, 2002

Pneumatic tire

SUMITOMO RUBBER IND16 citations84
US6398533B1Jun 4, 2002

Tire mold

SUMITOMO RUBBER IND14 citations82
US5879485AMar 9, 1999

Pneumatic radial tire including rubber spacer between axially adjacent carcass cords

SUMITOMO RUBBER IND15 citations82
US5431209AJul 11, 1995

Passenger tire with low bead apex volume

SUMITOMO RUBBER IND19 citations81
US6321806B1Nov 27, 2001

Pneumatic tire with rim flange holder

SUMITOMO RUBBER IND8 citations74
US5871606AFeb 16, 1999

Method of making a pneumatic tire with different carcass cord elongations between main portion and turned-up portions

SUMITOMO RUBBER IND9 citations74
US5820711AOct 13, 1998

Pneumatic radial tire including rubber spacer between axially adjacent carcass cords

SUMITOMO RUBBER IND11 citations74
US5730815AMar 24, 1998

Pneumatic tire with different carcass cord elongations between main portion and turned-up portions

SUMITOMO RUBBER IND13 citations74
US5639321AJun 17, 1997

Pneumatic radial tire including rubber spacer between axially adjacent carcass cords

SUMITOMO RUBBER IND12 citations74
US5972142AOct 26, 1999

Method of manufacturing radial tire having wound band

SUMITOMO RUBBER IND9 citations73
US5938870AAug 17, 1999

Pneumatic radial tire having inner carcass ply cord tension smaller than the outer carcass ply cord tension

SUMITOMO RUBBER IND8 citations73
US5656108AAug 12, 1997

Pneumatic radial tire having inner carcass ply cord tension smaller than the outer carcass ply cord tension

SUMITOMO RUBBER IND5 citations73
US6258189B1Jul 10, 2001

Method and apparatus for manufacturing tire

SUMITOMO RUBBER IND9 citations72
US6814118B2Nov 9, 2004

Pneumatic tire with specified airtight layer on inner surface

SUMITOMO RUBBER IND12 citations71
US9649890B2May 16, 2017

Method for manufacturing tire and pneumatic tire manufactured thereby

SUMITOMO RUBBER IND5 citations66
US6491081B2Dec 10, 2002

Method of manufacturing radial tire having wound band

SUMITOMO RUBBER IND1 citations62
US5538572AJul 23, 1996

Method of making a pneumatic radial tire having inner carcass ply cord tension smaller than outer carcass ply cord tension

SUMITOMO RUBBER IND3 citations62
US8028733B2Oct 4, 2011

Green tire and method for manufacturing pneumatic tire

SUMITOMO RUBBER IND2 citations59
US7833375B2Nov 16, 2010

Method and apparatus for butt-jointing edges of elastic material sheet

SUMITOMO RUBBER IND3 citations59
US12391012B2Aug 19, 2025

Tire processing apparatus, tire repairing apparatus, repair sheet, tire repairing method, and tire manufacturing method

SUMITOMO RUBBER IND0 citations58
US11097447B2Aug 24, 2021

Method for producing rubber member

SUMITOMO RUBBER IND0 citations58
US7857926B2Dec 28, 2010

Method for manufacturing pneumatic tire

SUMITOMO RUBBER IND3 citations57

SHARP KK

10 patents

NIPPON TELEGRAPH & TELEPHONE

6 patents

TERUMO CORP

3 patents

TOSHIBA KK

2 patents

SIMITOMO RUBBER IND LTD

1 patent

NITTO ELECTRIC IND CO

1 patent

NITTO DENKO CORP

1 patent

CANON KK

1 patent

Showing the top 50 of 69 patents by PatentIndex Score.