computer science

Mitsubishi Electric

Mitsubishi Electric is a computer science 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 Mitsubishi Electric rather than just read about it. In short: Mitsubishi Electric Corporation (三菱電機株式会社, Mitsubishi Denki kabushikigaisha; formerly branded as メルコ, MELCO) is a Japanese multinational electronics (appliances & consumer electronics) and electrical equipment manufacturing company headquartered in Tokyo, Japan. The company was established in 1921 as a spin-off from the electrical machinery manufacturing division of Mitsubishi Shipbuilding (Mitsubishi Heavy Industri…

Key takeaways

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

Reference excerpt

Mitsubishi Electric Corporation (三菱電機株式会社, Mitsubishi Denki kabushikigaisha; formerly branded as メルコ, MELCO) is a Japanese multinational electronics (appliances & consumer electronics) and electrical equipment manufacturing company headquartered in Tokyo, Japan. The company was established in 1921 as a spin-off from the electrical machinery manufacturing division of Mitsubishi Shipbuilding (Mitsubishi Heavy Industries) at the Kobe Shipyard. A member of the Mitsubishi Group, Mitsubishi Electric produces elevators and escalators, high-end home appliances, air conditioning, factory automation systems, train systems, electric motors, pumps, semiconductors, digital signage, and satellites.

History Mitsubishi Electric was established as a spin-off from the Mitsubishi Group's other core company Mitsubishi Heavy Industries, then Mitsubishi Shipbuilding, as the latter divested a marine electric motor factory in Kobe, Nagasaki. It has since diversified to become the major electronics company. Mitsubishi Electric held the record for the fastest elevator in the world, in the 70-story Yokohama Landmark Tower, from 1993 to 2005. The company acquired Nihon Kentetsu, a Japanese home appliance manufacturer, in 2005. In 2015 the company acquired DeLclima, an Italian company that designs and produces HVAC and HPAC units, renamed Mitsubishi Electric Hydronics & IT Cooling Systems SpA in 2017. In early 2020, Mitsubishi Electric was identified as a victim of the year-long cyberattacks perpetrated by the Chinese hackers. In 2023, Mitsubishi Electric announced its plans to spend 100 billion yen to build a new semiconductor factory in Kumamoto Prefecture, with a target date of April 2026 to begin production.

Products

In 2023, the World Intellectual Property Organization (WIPO)’s Annual PCT Review ranked Mitsubishi Electric's number of patent applications published under the PCT System as 4th in the world, with 2,152 patent applications being published during 2023. Some product lines of Mitsubishi Electric, such as air conditioners, overlap with the products from Mitsubishi Heavy Industries partly because the companies share the same root.

Air conditioning systems Room air conditioners (marketed as Mitsubishi Mr. Slim Room Air Conditioner and Mitsubishi Kirigamine) Package air conditioners (Marketed as Mitsubishi Mr. Slim Packaged Air Conditioner) Variable refrigerant flow (VRF) systems (marketed as Mitsubishi CITY MULTI) EcoCute (marketed as Ecodan or DIAHOT) Ventilators Air curtains Air conducting fan Home appliances Refrigerators and freezers Air purifiers, dehumidifiers Vacuum cleaners, electric fans Rice cookers, toasters Building systems Elevators, escalators Moving walks High-speed hand dryers (marketed as Mitsubishi Jet Towel) Information and communications systems Data transmission system solutions SCOPO, the world's first transmission at 10 Gbit/s between relay equipment boards set at a distance of 500 millimetres (20 in) apart Saffron Type System, an anti-aliased text-rendering engine, developed by Mitsubishi Electric Research Laboratories (MERL) Optical access systems Satellite communications Factory automation systems Programmable controllers AC servo systems, inverters Industrial and collaborative robots, processing machines Energy systems Power generation systems ITER nuclear fusion reactor Photovoltaic panels Transmission and distribution systems Medium & low-voltage switchgear and systems Power information & communication technology Semiconductors and devices Power modules, high-power devices Driver ICs Sensors (Contact image sensors, etc.) High-frequency devices optical devices TFT-LCD modules Transportation systems Rolling stock systems Power supply and electrification systems Transportation planning and control systems Communication systems Automotive equipment Charging and starting products Electrification products (Electric power steering system products, safety and driving assistance system products, etc.) Car multimedia products Visual information systems Large-scale LED displays Diamond Vision, large-scale video displays for sports venues and commercial applications Multimedia projectors Printers Space systems Satellite programs, platforms, and components Optical and radio telescopes Mobile Mapping System, a high-precision GPS mobile measurement system Public systems Applied superconductor systems Doppler lidar, radar systems Active electronically scanned array radar systems for the Mitsubishi F-2 fighter Uninterruptible power supply Water treatment systems, water pumps

Discontinued products Mobile phones, from 1999 to 2008. Created for NTT Docomo. Mitsubishi Electric quit the mobile phone business in Apr 2008 after decrease in shipments. They estimated a temporary loss of 17 billion Yen in income before income taxes. Video Cassette Recorders known as the Mitsubishi Black Diamond VCR. Started production around 1978 and ended around 2006. DVD Players, starting around 1998 and ending around 2006. Televisions Large-screen HDTVs. Competitors in the U.S. market were Sony, Pioneer, Panasonic, JVC, Samsung (Akai), Daewoo, LG (Zenith), and Apex Digital. Direct-view CRT televisions and monitors, including Diamond Views and Diamondtrons, from 1953 until 2001. The last notable size in this field was a 40" (diagonal) tube size. LCD TVs, starting in 2004 and ending in 2024. DLP High Definition TVs, until December, 2012. Mitsubishi Electric then focused on professional and home theater DLP projection applications, and is no longer manufacturing televisions for the consumer market. Computer memory. Business unit spun off to be part of Elpida Memory. Computers, including Mitsubishi Electric mainframe computers, personal computer(Multi8, Multi16) and MSX home computers from 1978 to around 1994. System LSIs. Business unit spun off to be part of Renesas Technology. Popular music. Mitsubishi Electric previously marketed popular music via record company Nippon Crown, which had been spun off from then-Nissan Group-owned Nippon Columbia on September 15, 1963. it was sold to Daiichi Kosho Company in July, 2001. Particle Beam Treatment System, until 2017. Business sold to Hitachi.

Global operations

As of 2013, Mitsubishi Electric's business network around the world were the following:

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Mitsubishi Electric

Start with the simplest possible case. Write down what Mitsubishi Electric claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, 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 Mitsubishi Electric 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 Mitsubishi Electric 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 Mitsubishi Electric

In research: Mitsubishi Electric appears in computer science 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 Mitsubishi Electric 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: Mitsubishi Electric is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aerospace companies of Japan, Companies in the Nikkei 225, Companies listed on the London Stock Exchange, so understanding it makes those chapters shorter.
In everyday life: Look for Mitsubishi Electric 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 Mitsubishi Electric in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mitsubishi Electric 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 Mitsubishi Electric out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mitsubishi Electric in simple terms?

Why does Mitsubishi Electric matter?

Because it connects several computer science 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 Mitsubishi Electric?

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 Mitsubishi Electric.