Kyowa Hearts Co., Ltd.

Come to us for light, small, narrow and difficult leaf springs, from testing to mass production!

Come to us for light, small, narrow and difficult leaf springs, from testing to mass production!

Come to us for light, small, narrow and difficult leaf springs, from testing to mass production!

Come to us for light, small, narrow and difficult leaf springs, from testing to mass production!

Kyowa Hearts Co., Ltd.
Come to us for fine, thin, small, narrow and complex plate springs when you have no time to spare between testing and mass production!

Come to us for fine, thin, small, narrow and complex plate springs when you have no time to spare between testing and mass production!

Come to us for fine, thin, small, narrow and complex plate springs when you have no time to spare between testing and mass production!

Come to us for fine, thin, small, narrow and complex plate springs when you have no time to spare between testing and mass production!

Kyowa Hearts Co., Ltd.
We make everything from plates to three-dimensional objects. We perform cold forging on shapes that aren't possible with cutting!

We make everything from plates to three-dimensional objects. We perform cold forging on shapes that aren't possible with cutting!

We make everything from plates to three-dimensional objects. We perform cold forging on shapes that aren't possible with cutting!

We make everything from plates to three-dimensional objects. We perform cold forging on shapes that aren't possible with cutting!

Kyowa Hearts Co., Ltd.
If you have a die but are having trouble with press stamping, then consult with us.

If you have a die but are having trouble with press stamping, then consult with us.

If you have a die but are having trouble with press stamping, then consult with us.

If you have a die but are having trouble with press stamping, then consult with us.

Kyowa Hearts Co., Ltd.
We can offer a wide range of round-shaped products! Our company can do both curling and drawing! We'll propose the optimal production method!

We can offer a wide range of round-shaped products! Our company can do both curling and drawing! We'll propose the optimal production method!

We can offer a wide range of round-shaped products! Our company can do both curling and drawing! We'll propose the optimal production method!

We can offer a wide range of round-shaped products! Our company can do both curling and drawing! We'll propose the optimal production method!

Kyowa Hearts Co., Ltd.
SUS304CSP-1/2H Complex-Shaped Parts with Multi-Process Progressive Stamping

SUS304CSP-1/2H Complex-Shaped Parts with Multi-Process Progressive Stamping

SUS304CSP-1/2H Complex-Shaped Parts with Multi-Process Progressive Stamping

SUS304CSP-1/2H Complex-Shaped Parts with Multi-Process Progressive Stamping

Kyowa Hearts Co., Ltd.
C7521R-1/2H t:0.1mm Non-Circular Deep Drawing Processing

C7521R-1/2H t:0.1mm Non-Circular Deep Drawing Processing

C7521R-1/2H t:0.1mm Non-Circular Deep Drawing Processing

C7521R-1/2H t:0.1mm Non-Circular Deep Drawing Processing

Kyowa Hearts Co., Ltd.
C2680R-H Nickel-Plated Leaf Spring Reinforcement Plate

C2680R-H Nickel-Plated Leaf Spring Reinforcement Plate

C2680R-H Nickel-Plated Leaf Spring Reinforcement Plate

C2680R-H Nickel-Plated Leaf Spring Reinforcement Plate

Kyowa Hearts Co., Ltd.
Leaf Spring with Two Contact Points (Micro & Complex Bending)

Leaf Spring with Two Contact Points (Micro & Complex Bending)

Leaf Spring with Two Contact Points (Micro & Complex Bending)

Leaf Spring with Two Contact Points (Micro & Complex Bending)

Kyowa Hearts Co., Ltd.
Leaf Spring – Concentricity & Coaxiality Within 0.03, Complex Shape

Leaf Spring – Concentricity & Coaxiality Within 0.03, Complex Shape

Leaf Spring – Concentricity & Coaxiality Within 0.03, Complex Shape

Leaf Spring – Concentricity & Coaxiality Within 0.03, Complex Shape

Kyowa Hearts Co., Ltd.
Leaf Spring for Socket Contact - Small-Diameter Curling Processing

Leaf Spring for Socket Contact - Small-Diameter Curling Processing

Leaf Spring for Socket Contact - Small-Diameter Curling Processing

Leaf Spring for Socket Contact - Small-Diameter Curling Processing

Kyowa Hearts Co., Ltd.
C2680R-1/2H Small-Diameter Deep Drawing (Progressive Processing)

C2680R-1/2H Small-Diameter Deep Drawing (Progressive Processing)

C2680R-1/2H Small-Diameter Deep Drawing (Progressive Processing)

C2680R-1/2H Small-Diameter Deep Drawing (Progressive Processing)

Kyowa Hearts Co., Ltd.
C1720R-HM Small-Diameter Curling Processing (Progressive Stamping, Continuous Winding)

C1720R-HM Small-Diameter Curling Processing (Progressive Stamping, Continuous Winding)

C1720R-HM Small-Diameter Curling Processing (Progressive Stamping, Continuous Winding)

C1720R-HM Small-Diameter Curling Processing (Progressive Stamping, Continuous Winding)

Kyowa Hearts Co., Ltd.
Introducing Load Testing / Load Measurement Services for Leaf Springs

Introducing Load Testing / Load Measurement Services for Leaf Springs

Introducing Load Testing / Load Measurement Services for Leaf Springs

Introducing Load Testing / Load Measurement Services for Leaf Springs

Kyowa Hearts Co., Ltd.
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