Inventor

TSUKAMOTO KOUJI

JP9 patents

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

SUMITOMO RUBBER IND

2 patents

US5328533AJul 12, 1994

Bead apex applying method and device

SUMITOMO RUBBER IND27 citations89

US5145542ASep 8, 1992

Method and apparatus for producing a biased belt sheet

SUMITOMO RUBBER IND22 citations89

MITSUBISHI ELECTRIC HOME APPL

2 patents

US5905234AMay 18, 1999

Sound absorbing mechanism using a porous material

MITSUBISHI ELECTRIC HOME APPL34 citations88

US6109388AAug 29, 2000

Sound absorbing mechanism using a porous material

MITSUBISHI ELECTRIC HOME APPL9 citations69

JAPAN TOBACCO INC

2 patents

US12059031B2Aug 13, 2024

Housing and flavor aspirator provided with same

JAPAN TOBACCO INC2 citations67

US12439968B2Oct 14, 2025

Housing and flavor aspirator provided with same

JAPAN TOBACCO INC0 citations57

SEMICONDUCTOR PROCESS LAB CO

1 patent

US6133160AOct 17, 2000

Method for reforming undercoating surface and method for production of semiconductor device

SEMICONDUCTOR PROCESS LAB CO40 citations91

NIPPON RUBBER CO

1 patent

US4661547AApr 28, 1987

Antistatic material comprising (a) quaternary ammonium salt (b) peg having a molecular weight in the range 2000-5000 and (c) rubber or PVC

NIPPON RUBBER CO15 citations71

ASAHI TSUSHO KK

1 patent

US5091125AFeb 25, 1992

Method of forming anti-slip shoe sole

ASAHI TSUSHO KK13 citations70