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Kazuo Inamori's Amoeba Management and philosophy
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Kazuo Inamori, the founder of Kyocera, described two ideas in public. Amoeba Management runs a company as small units, each with its own leader and its own profit, with everyone taking part. His philosophy rests on one judgment criterion: what is right as a human being. This page explains both from his lecture and from the Kazuo Inamori website that Kyocera runs, and shows how to apply them to your own company.
Key points
- Small units, own profit: a large organisation is split into small groups run on their own profit and loss, each with an appointed leader.
- Leaders plan: within company policy, each leader makes the unit's plan and carries it out with a superior's approval.
- Hourly efficiency: added value divided by total working hours, so units that do different work can be compared.
- The criterion: what is right as a human being. In his words, plain morals such as be honest, don't deceive people, don't lie.
Amoeba Management: small units that each own a profit
The Kazuo Inamori website describes Amoeba Management as dividing an organisation into small, autonomous units called amoebas. Each has a leader who acts as the true manager of the unit: even with limited experience, the leader makes and carries out a business plan under upper management's approval. Members set their own goals in line with the company's, which the site calls Management by All. The Japanese page gives three aims: a profit system by department that is tied directly to the market, developing people with a manager's mindset, and management with everyone taking part.
A practical test is whether each unit can see its own revenue (including what it hands to other units) and its own expenses. In a 20-person agency where every sale is booked by the account team, the design and build teams can't see a result of their own. The usual first step is an agreed internal price for the work one unit hands to another.
Hourly efficiency: one measure for different kinds of work
Kyocera's Inamori Library says Inamori devised the Hourly Efficiency system in 1965 as a management accounting indicator. The added value created through work is divided by total working hours, giving added value per hour. Units of different sizes doing different work can then be compared on how much value they create in an hour.
Two of his Twelve Management Principles sit beside it. Article 5 says to maximise sales and minimise expenses, and article 6 says that pricing is management. Hourly efficiency can be read as the monthly check that each unit is doing both.
The philosophy: decide by what is right as a human being
In a lecture on 20 January 2010, "Why management needs a philosophy", Inamori said the root of the Kyocera Philosophy is the question of what is right as a human being, and holding to the answer. He described the content as primitive morals taught by parents and teachers, such as be honest, don't deceive people and don't lie, and said Kyocera had followed that criterion. In the same lecture he said a company aiming high needs a way of thinking that serves as everyone's standard.
His approach to accounting starts from the same place. The website's page on Inamori accounting says that when Kyocera began, he decided to base his judgments on what is right as a person, and to solve accounting problems by going back to their essence rather than to custom. The page lists seven principles, including one-to-one correspondence, double-checking and transparent ("glass-walled") management.
To apply it, restate the hard decision in one plain sentence ("optimise the refund window" becomes "make refunds slower"). Then check each option: is it honest, does it deceive anyone by silence, and would it hold up if everyone affected saw how it was made?
How to apply it to your own company
- List your units with their leader, what each produces, and who receives it (a customer or another unit).
- For each unit, collect revenue (or internal transfers), expenses and total hours worked.
- Divide added value by hours for each unit, and write down which expenses you counted.
- Check whether each leader writes the unit's plan or only receives a target.
- Put any hard decision through the question of what is right as a human being, option by option.
- Write the resulting standard in one sentence the team can reuse.
What the sources say, and what they don't
Everything above comes from the Kazuo Inamori website, the Inamori Library exhibition and the 2010 lecture. The sources don't give the detailed operating rules: how to draw units, how to set internal prices, or which expenses come off sales. The skills below review your current setup against the published principles; they don't reproduce Kyocera's system.
Questions
What is Amoeba Management in one sentence?
A way of running a company as many small units, each with its own leader and its own profit and loss. Kazuo Inamori's website gives three aims: a profit system by department tied directly to the market, developing people with a manager's mindset, and management by all.
How is hourly efficiency calculated?
The added value created through work divided by total working hours. Kyocera's Inamori Library says Inamori devised it in 1965 as a management accounting indicator. The cited sources don't say which expenses come off sales.
What is the judgment criterion of the Kyocera Philosophy?
In a 2010 lecture Inamori said its root is the question of what is right as a human being: the plain morals people learn as children, such as be honest, don't deceive people and don't lie.
Free AI skills
Use these as AI skills
Each skill below turns one of these principles into steps your AI follows on your own plan, numbers or decision. It reviews against the principles as cited; it doesn't imitate anyone.
Inamori-style small-unit profit review
Reviews how your teams are split into small profit units and measured, against Kazuo Inamori's published principles: own leader and plan, added value per hour, everyone takes part.
Inamori-style 'right as a person' check
Checks a hard business decision or plan against what Kazuo Inamori called the root of the Kyocera Philosophy, what is right as a human being, and his Twelve Management Principles.
Works in Claude, ChatGPT, and coding agents. In a pod, everyone on your team runs the same version.
Sources
- Amoeba Management, Kazuo Inamori website (Kyocera) — small autonomous units, leaders who make their own plans, Management by All (read 2026-11-04)
- アメーバ経営, Kazuo Inamori website (Japanese) — the three stated aims (read 2026-11-04)
- Inamori Library, 2F Technology and Management — Hourly Efficiency, devised in 1965: added value divided by total working hours (read 2026-11-04)
- 経営12カ条 (Twelve Management Principles), Kazuo Inamori website — article 5, maximise sales and minimise expenses; article 6, pricing is management (read 2026-11-04)
- Lecture: なぜ経営に哲学が必要なのか (Why management needs a philosophy), 20 January 2010 — the root of the Kyocera Philosophy is what is right as a human being (read 2026-11-04)