About Us
Inaba Denko America Inc. supplies HVAC accessories engineered by Inaba Denko of Japan and provides support for distributors and contractors throughout North America.
Our brands represent quality, precision, and durability. Primary products include copper line sets, line set covers, drain hoses, and mounting systems, ideal for mini split, VRF, and unitary heat pump installations.

INABA DENKO A Legacy of Excellence
Founded in 1938, our company established its HVAC division in 1978 under the name Inaba Denko. Since then, we have operated independently, holding the largest market share in Japan and setting industry standards for decades.
Global Presence
Our operations have expanded beyond Japan to North America, Asia, Oceania, the Middle East, Europe, and Africa. With a robust international footprint, we continue to achieve consistent growth and sales success worldwide.
Ductless Expertise
As experts in ductless air conditioning, we bring unparalleled knowledge and expertise to the Japanese market—the birthplace of ductless technology—and have leveraged this foundation to expand globally..
Commitment to Quality
We employ diversified manufacturing strategies to ensure a stable supply chain and business continuity. This includes operating three factories in Japan, one in Thailand, and collaborating with partner factories across Asia.
Streamlined Logistics
Through our corporate factories, partner warehouses, and distribution centers in the U.S., we optimize global logistics for faster and more efficient delivery, meeting the needs of our customers wherever they are.

Corporate History and the Division

Founded by Yataro Inaba

Launched Drain hose

Established Inaba Denko

Launched Slimduct SD

Launched Paircoil

Launched Plarock

Launched Slimduct RD

Launched Ins. Drain Hose

Launched Slimduct PD

Launched DSH-UP

Opened Inaba Denko America, Inc.
INABA GROUP DENKO GLOBAL NETWORK

Global Headquarters
Osaka-shi, Osaka 550-0012 Japan
Tokyo Headquarters
Minato-ku, Tokyo 108-0075 Japan
Global Sales Headquarters
Inaba Denko America Inc.- US Sales Office
Thailand Factory
Tambol Klongamrhu, Amphur Muang, Chonburi 20000