2022 Faculty Courses School of Engineering Department of Mechanical Engineering Graduate major in Mechanical Engineering
Taguchi Method
- Academic unit or major
- Graduate major in Mechanical Engineering
- Instructor(s)
- Tetsuo Hosokawa
- Class Format
- Lecture (Livestream)
- Media-enhanced courses
- -
- Day of week/Period
(Classrooms) - 5-6 Fri
- Class
- -
- Course Code
- MEC.G532
- Number of credits
- 100
- Course offered
- 2022
- Offered quarter
- 2Q
- Syllabus updated
- Jul 10, 2025
- Language
- Japanese
Syllabus
Course overview and goals
【 Overview 】
In this lecture, technology development strategy of the Taguchi Method and how to utilize its techniques are lectured.
【 Aim 】
It becomes a necessary condition for a company's survival to continuously provide products that exceed the expectations of customers. For manufacturing companies, the most important management task is to continuously introduce differentiated products with unique technologies to the market. In order to launch products that utilize new technologies, it is essential to ensure the robustness of functions at the technology development stage, which is the upstream of manufacturing. This is because, in many cases, it is necessary to change the structure of the system and the level of many design parameters in order to ensure robustness with high performance. Such activities cannot be carried out at the product design stage after the detailed design has been decided. The Taguchi method is a strategy and technique to ensure the robustness of products in the technology development stage, and it is an essential subject as a standard acquisition technique for engineering graduates.
Course description and aims
To understand the technology development strategy of the Taguchi method, to be able to design an evaluation plan for the technology based on a two-stage design of parameter design, and robustness quantification by SN ratio. Furthermore, to understand the aim of the CS-T method (Causality Search T Method), which is a technique for devising new system structures and design parameters.
Student learning outcomes
実務経験と講義内容との関連 (又は実践的教育内容)
A lecturer who is engaged in quality control work using Taguchi methods in a company will give practical lectures from basics to applications of Taguchi methods based on experience at actual production factory.
Keywords
Quality engineering, technology development, interaction, orthogonal table, functional evaluation, CS-T method
Competencies
- Specialist skills
- Intercultural skills
- Communication skills
- Critical thinking skills
- Practical and/or problem-solving skills
Class flow
In this lecture, students learn the fundamentals of the Taguchi method, such as design of experiments, robustness evaluation, robust parameter design, and CS-T method, through classroom lectures and exercises.
Course schedule/Objectives
| Course schedule | Objectives | |
|---|---|---|
| Class 1 | Manufacturing Issues in Companies and Expectations of the Taguchi Method The Taguchi Method's Technology Development Strategy | Understand the contents of one chapter of the textbook. |
| Class 2 | Interaction and orthogonal array | Understand the contents of chapter 2 of the textbook. |
| Class 3 | Parameter design | Understand the contents of the textbook chapter up to section 3.2 and appendix 2. Report assignmen |
| Class 4 | Approach to robustness evaluation | Understand the contents of Chapter 3, Section 3.3 of the textbook. Report Assignment |
| Class 5 | Sum of squares decomposition and signal to noise ratio | Understand the contents of Appendix 3 of the textbook. |
| Class 6 | Robust parameter design and technology development using CS-T method | |
| Class 7 | Case studies of technological development Review of the lecture and Q & A | Understand the contents of Chapters 3 and 4 of the textbook Report Assignment |
Study advice (preparation and review)
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Textbook(s)
Tetsuo Hosokawa, "Technology Development Using the Taguchi Method," JUSE Press, Inc.
Reference books, course materials, etc.
Motohisa Ono (ed.), Quality Engineering from the Basics, Japanese Standards Association, ISBN 978-4-542-51142-2
Evaluation methods and criteria
Reports of exersize（100％）
Related courses
- none
- none
Prerequisites
none