physics

Hisashi Matsuda

Hisashi Matsuda is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Hisashi Matsuda rather than just read about it. In short: Hisashi Matsuda (松田久; 2 March 1924 - 13 November 2011) was a Japanese physicist known for his work in ion optics and mass spectrometry, specifically known for his contributions to instrument design. Career and research Matsuda was born in Osaka and studied physics and mathematics at Osaka University, receiving a PhD in 1957 from Osaka University for his thesis on mass spectrometry under Koreichi Ogata.

Key takeaways

Hisashi Matsuda belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Hisashi Matsuda to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Hisashi Matsuda from memory before moving on to harder problems.

Reference excerpt

Career and research Matsuda was born in Osaka and studied physics and mathematics at Osaka University, receiving a PhD in 1957 from Osaka University for his thesis on mass spectrometry under Koreichi Ogata. He started as assistant professor in 1955 and become associate professor in 1959 and full professor 1963 at Osaka University. His career was devoted to mass spectrometry, developing novel ion optics and improving resolving power. In 1956 he constructed the Ogata–Matsuda type instrument with a mass resolution of 900,000 which was the highest resolution worldwide. He constructed mass spectrometers suited for analysis of large biomolecules and was one of the first to realize the implications of mass spectrometry on the analysis of peptides and proteins. He retired in 1987. He was awarded several prizes for his work, including the Nishina Memorial Prize in 1969 and the Toray Science and Technology Prize in 1982. He received the Thomson medal from the International Mass Spectrometry Society in 1991 and the Order of the Rising Sun, Gold Rays with a Neck Ribbon in spring 2002.

References

External links Takayama, Mitsuo (2015). "Hisashi Matsuda". The Encyclopedia of Mass Spectrometry. Elsevier. pp. 145–146. doi:10.1016/B978-0-08-100379-4.00133-7. ISBN 978-0-08-100379-4.

Worked examples

Example 1 — a first encounter with Hisashi Matsuda

Start with the simplest possible case. Write down what Hisashi Matsuda claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Hisashi Matsuda before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Hisashi Matsuda ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Hisashi Matsuda

In research: Hisashi Matsuda appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Hisashi Matsuda in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Hisashi Matsuda is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1924 births, 2011 deaths, 20th-century Japanese physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Hisashi Matsuda outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Hisashi Matsuda in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hisashi Matsuda means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Hisashi Matsuda out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hisashi Matsuda in simple terms?

Hisashi Matsuda (松田久; 2 March 1924 - 13 November 2011) was a Japanese physicist known for his work in ion optics and mass spectrometry, specifically known for his contributions to instrument design. Career and research Matsuda was born in Osaka and studied physics and mathematics at Osaka Universi…

Why does Hisashi Matsuda matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Hisashi Matsuda?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Hisashi Matsuda.