ヤマオカ株式会社

Company Profile

Message from the General Director

Our technology brings to life what could not be realized before.

There are always challenges in manufacturing. These are not limited to producing parts exactly as specified in drawings, but often include projects that are considered difficult even to bring into form.

For many years, Yamaoka Co., Ltd. has taken on numerous projects regarded as difficult to mold or handle, repeatedly refining our processes and ultimately achieving the productization and mass production of components once thought to be impossible.

Our products range from those that support everyday life, such as housing, automotive, and electrical equipment components, to specialized equipment that plays a key role in national projects.

We take pride in the technological capabilities and proactive spirit that have consistently driven us to take on these challenges.

We are a manufacturer specializing in plastic molding that leverages the properties of a wide range of resin materials, producing architectural components, electronic parts, automotive parts, and products across many industries.

Guided by the belief that “what is difficult is precisely what is worth doing,” we will continue to respond to growing demands both in Japan and abroad, and remain a trusted manufacturing partner.

We sincerely appreciate your continued support.

Yamaoka Co., Ltd. Hirotada Yamaoka President and CEO

Policies and Guidelines

Management Policy

  • We strive to build a company that is trusted by society, valuing the happiness and growth of our employees.
  • We ensure strict adherence to corporate ethics to maintain the trust of society.
  • We continuously pursue improvement and challenge ourselves in technological development and innovative manufacturing to remain a company trusted by society.

Quality Policy

  • Manufacturing products that customers can use with confidence.
  • Creating a workplace that enhances quality improvement and stability.
  • Developing personnel who enhance technological capabilities.
  • Achieving both high quality and short delivery times.
  • Valuing our customers, our company, and our colleagues.

Code of Conduct

  • The products we create become operating capital only when customers are satisfied and purchase them. Always act with the awareness that our livelihoods and company operations depend on this.
  • Many partner companies are involved in a single product. All departments and all employees should actively challenge themselves to improve quality and production efficiency.
  • Customer needs are market needs, and market needs are our needs. Build an organization that responds to the needs of modern society and enhances corporate value.
  • Be sincere in all actions. Respect all people, not only those directly involved, value all people and things, and treat them with care and integrity.

Company Information

Company Name Yamaoka Co., Ltd.
Company Name in English Yamaoka Co., Ltd.
General Director Hirotada Yamaoka
Established 1946
Incorporated August 2, 1971
Capital 30 million yen
Head Office 3-7-10 Minami-Matsunaga-cho, Fukuyama-shi, Hiroshima 729-0105, Japan
TEL +81-84-933-2257
FAX +81-84-934-7080
Email info@yamaokak.com
Website https://yamaokak.co.jp/
Employees 70

Company Profile of Yamaoka Vietnam

Major Clients

Business Activities

Injection Molding

  • Engineering plastic molding
  • General-purpose resin molding
  • PVC molding

Assembly

  • Flexible response to high-mix, low-volume production
  • Soldering and press work
  • PVC bonding
  • Resin and metal crimping
  • Spot welding

Integrated Production from Design

  • Mold design and manufacturing
  • Mechanical parts design and machining
  • Resin parts design and machining

Facilities

Head Office Plant Site area 2,978 m², Building area 2,411 m²
South Plant Site area 2,408 m², Building area 1,498 m²
Injection Molding Machines 30 to 860 tons (30 units)
Vehicles 4-ton wing truck, 2-ton truck, vans, forklifts

Manufactured Products

Banking Partners

Certifications

History

1946 Started wooden clog manufacturing at 515 Matsunaga-cho, Fukuyama
1953 Relocated from 515 Matsunaga-cho to 539 Matsunaga-cho, Fukuyama
1963 Transitioned from wooden clog manufacturing to wooden heel manufacturing
1968 Expanded with the Yanagitsu Plant in Yanagitsu-cho, Fukuyama
1971 Established Yamaoka Seisakusho Co., Ltd. with capital of 3 million yen
1984 Built a new plant in Minami-Matsunaga-cho 3-chome, Fukuyama, and relocated headquarters from 539 Matsunaga-cho
1990 Began plastic molding operations
1993 Reorganized as Yamaoka Co., Ltd. with capital of 10 million yen
2005 Expanded with the 4th plant and began assembly of electrical and electronic components
2007 Acquired ISO 9001 certification
2008 Exceeded 15 plastic molding machines and built the 7th plant
2014 Increased capital to 30 million yen
2017 Established YAMAOKA VIETNAM
2019 Completed YAMAOKA VIETNAM plastic molding plant