Verified Nov 2026
Powertrain & Drivetrain
·
Chuo, Tokyo
·
Since
Nippon Piston Ring Co., Ltd. is a publicly listed manufacturer headquartered in Chuo, Tokyo, Japan, with 1,000 to 5,000 employees and reported revenue of about 440.8 million. Its portfolio includes piston rings, cylinder liners, valve mechanical parts, and composite camshafts for automobile and marine engines, and it serves the automotive industry. The company is part of the NPR-RIKEN group and supplies major global automotive manufacturers.
Nippon Piston Ring Co. Ltd. at a glance
Revenue
440.8M
Employees
1,000-5,000
Headquarters
Chuo, Tokyo
Ownership
Publicly traded (JPX: 6461.T)
Industries
Automotive
Overview
Nippon Piston Ring Co., Ltd. is a publicly listed manufacturer headquartered in Chuo, Tokyo, Japan, with 1,000 to 5,000 employees and reported revenue of about 440.8 million. Its portfolio includes piston rings, cylinder liners, valve mechanical parts, and composite camshafts for automobile and marine engines, and it serves the automotive industry. The company is part of the NPR-RIKEN group and supplies major global automotive manufacturers.
At a glance
Attribute | Detail |
|---|---|
Headquarters | Chuo, Tokyo |
Employees | 1,000-5,000 |
Revenue | 440.8M |
Ownership | Publicly traded (JPX: 6461.T) |
Primary capability | Powertrain & Drivetrain |
What Nippon Piston Ring Co. Ltd. makes
Its products include piston rings, cylinder liners, valve lifters, valve guides, rocker arms, sealing rings, and parts made by metal injection molding, and the record lists no certifications.
Company details
The company is publicly traded under ticker 6461.T and is part of the NPR-RIKEN group, operating in the automotive sector. Nippon Piston Ring Co. Ltd. has an estimated 1,000-5,000 employees, and is headquartered in Chuo, Tokyo.
Frequently asked questions
What does Nippon Piston Ring Co. Ltd. make?
Nippon Piston Ring Co., Ltd. is a publicly listed manufacturer headquartered in Chuo, Tokyo, Japan, with 1,000 to 5,000 employees and reported revenue of about 440.8 million. Its portfolio includes piston rings, cylinder liners, valve mechanical parts, and composite camshafts for automobile and marine engines, and it serves the automotive industry. The company is part of the NPR-RIKEN group and supplies major global automotive manufacturers.
Where is Nippon Piston Ring Co. Ltd. headquartered?
Nippon Piston Ring Co. Ltd. is headquartered in Chuo, Tokyo.
How big is Nippon Piston Ring Co. Ltd.?
Nippon Piston Ring Co. Ltd. has an estimated 1,000-5,000 employees, with revenue in the 440.8M range.
Is Nippon Piston Ring Co. Ltd. publicly traded?
Publicly traded (JPX: 6461.T). Public financial figures are drawn from its filings.
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