

Pioneering manufacturing technology.
Proven skills and experience cultivated
from tens of thousands of manufacturing projects.
-
Hisasue Co., Ltd.
- Metal Processing, Processing Support Services
Yoshiaki Hisasue
- Prefecture
- Aichi
- Business Activities
- Metal Processing, Processing Support Services
- Company Name
- Hisasue Co., Ltd.
- Representative Name
- Yoshiaki Hisasue
- Location
-
〒459-8001
A-55, Odaka-cho Aza Torashinden, Midori-ku, Nagoya-shi, Aichi, Japan
- Phone Number
- 052-825-6535
- Website
Factory Stories
Hisasue Co., Ltd.'s Stance
Yoshiaki Hisasue, aspiring to "work in a broader world," established his sole proprietorship in February 2018 and incorporated it as a company in August of the same year.
After graduating from high school, Yoshiaki aimed to become a metal manufacturing business owner and enrolled in a university's industrial engineering department. However, he dropped out after one year and joined Meinan Kikai Seisakusho, his father's company, at the age of 19.
Meinan Kikai Seisakusho primarily manufactures aircraft parts and machine equipment parts. Yoshiaki was involved in on-site machining operations there for about 10 years, after which he served as Production Manager, overseeing the factory floor and handling client meetings.
“Meinan Kikai was a company with a 'can-do' attitude, always ready to take on challenges, believing there was nothing they couldn't make.”
The 'challenging spirit' cultivated in his previous role has been passed down to the current Hisasue Co., Ltd.
Hisasue's Machining Technology
Currently, Hisasue Co., Ltd.'s core business is the manufacturing of parts for machine tools and manufacturing equipment.
They produce components for micro-laser processing machines that drill holes at ultra-high speeds in semiconductor substrates, and specialized equipment for automobile manufacturing.
“Although we are a parts machining company, we believe our mission is to ensure the equipment beyond our parts operates as efficiently as possible.”
Hisasue's strength lies in its ability to perform machining using Mazak's 'INTEGREX,' which combines turning and machining in one machine.
Since one machine can perform both turning and milling, it reduces man-hours. Also, positioning is done only once, enabling high-precision machining. This has earned them a good reputation from clients. As this machine is not widely adopted by other companies, it will likely be one of Hisasue's distinguishing features.
“The high cost of the machine and the specialized skills required to operate it might be reasons why it's not widely adopted.”
Companies that already possess separate turning and machining equipment might not consider investing in such an expensive machine. However, Hisasue's machining technology has more unique features.
“Currently, we mostly process aluminum, but we can machine any material, including stainless steel, titanium, and resin, in addition to aluminum.”
Titanium is a very hard material, making it difficult to machine. The ability to machine titanium is due to Yoshiaki's experience in processing titanium parts in his previous job. In his former role, he manufactured aircraft parts, which involved extensive titanium machining. Furthermore, he was also responsible for manufacturing one-off jigs and parts other than aircraft components, gaining experience with a wide range of materials and processes. This enables Hisasue to meet a very broad spectrum of demands.

Jig Proposal, Design, and Manufacturing
“Recently, we've seen an increase in requests from our business partners to produce jigs.”
These requests involve designing and manufacturing jigs necessary for clients to perform parts machining using their existing machinery. Yoshiaki plans the machining processes and handles the design and manufacturing of the jigs.
Yoshiaki comprehensively considers the final image and the machines to be used for processing, proposing the optimal machining method to reduce man-hours and enhance precision.
This capability stems from Yoshiaki's experience leading the manufacturing of over 1,000 aircraft parts, and tens of thousands of parts in total, including one-off items beyond aircraft components. In aircraft parts manufacturing, once a production process is determined, it cannot be changed. Programs and jigs must be fixed and produced precisely. However, for parts being made for the first time, it's necessary to consider the manufacturing process and jigs from scratch.
“For new aircraft parts, I initially devised all the processes and implemented them on the factory floor.”
At that time, his focus was on maintaining stable quality regardless of human skill and minimizing man-hours.
“Even for a single part, there are many approaches. Also, as equipment is updated, we consider the overall picture to determine the optimal method.”
Thus, Yoshiaki participated in client meetings held during the design phase, offering opinions from a manufacturing perspective and proposing ways to reduce production costs. These experiences are now applied to proposing machining methods and designing/manufacturing jigs.
Hisasue's True Strength Lies in Production Engineering Capabilities
Hisasue's greatest strength lies in its 'production engineering capabilities'.
“I generally understand what processes are required to manufacture a specific part.”
Manufacturing a single part requires various machining processes. Yoshiaki can visualize in detail the entire process of how materials should be processed to deliver a finished part. Hisasue possesses both advanced machining equipment and technical expertise.
However, the true strength lies in the knowledge and experience that support these.
“What I enjoy most is discussing and building processes to achieve stable quality and highly efficient manufacturing.”
Therefore, they aim to expand their work by leveraging their production engineering knowledge, without being confined to the framework of 'a parts machining company'.
“First, we want to firmly engage in manufacturing through parts production to meet customer demands, and then gradually expand our scope of work.”
While they aim to handle projects from design to parts machining, assembly, and installation in a comprehensive manner, there are challenges to overcome. Currently, Yoshiaki is the only one with the production engineering capabilities to fully satisfy clients.
Yoshiaki has gained experience by reviewing numerous drawings, manufacturing many parts, and learning from repeated trials and errors. This is why he can derive the optimal machining method from drawings and other information.
It is essential to cultivate personnel within the company who possess high production engineering capabilities, similar to Yoshiaki. To achieve this, they will continue to diligently pursue machining operations. This is because by updating machining technology, production engineering capabilities can also be enhanced.
What is Needed for Future Manufacturing
Yoshiaki states that the world of Japanese manufacturing will become increasingly challenging in the future. There is an abundance of goods, and many overseas products. Therefore, manufacturing for Japanese SMEs is expected to become even more difficult.
However, manufacturing will not disappear. That is precisely why Japanese SMEs need know-how and technical capabilities.
“Simply producing cheaply and in large quantities won't allow us to compete with overseas manufacturing. Therefore, I believe we need to refine our technical capabilities to make them a strength.”
The 'technology' Yoshiaki refers to includes knowledge. For some companies, it might be 'the know-how to achieve unparalleled precision.'
The technology Hisasue believes it should refine is 'production engineering capabilities'.
“I believe in the necessity of production engineering capabilities and will pursue them.”
One-off items and newly created products have no precedents. The power to create something new is essential. It is the technology that generates optimal machining from a wealth of experience and knowledge.
As Yoshiaki envisioned when he became independent, Hisasue will continue to expand its reach and support many manufacturing sites with its production engineering capabilities.