Masaru Ibuka was co-founder of Sony Corporation
E931515
Masaru Ibuka was a pioneering Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a key figure in the development of Japan’s postwar technology industry.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Masaru Ibuka was co-founder of Sony Corporation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11539742 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Masaru Ibuka was co-founder of Sony Corporation Context triple: [Kindergarten Is Too Late, hasAuthorBackground, Masaru Ibuka was co-founder of Sony Corporation]
-
A.
Akio Morita
Akio Morita was a Japanese businessman and co-founder of Sony who played a key role in transforming it into a global electronics and entertainment giant.
-
B.
Fusajiro Yamauchi
Fusajiro Yamauchi was a Japanese entrepreneur best known for establishing the company that would evolve into the global video game giant Nintendo.
-
C.
Masayoshi Son
Masayoshi Son is a Japanese billionaire entrepreneur and investor, best known as the founder and CEO of SoftBank Group and for his influential role in global technology investing.
-
D.
Mikihiro Iwata
Mikihiro Iwata is a Japanese anime industry figure best known as the founder of the animation studio A-1 Pictures.
-
E.
Konosuke Matsushita
Konosuke Matsushita was a Japanese industrialist and entrepreneur who founded Panasonic and built it into one of the world’s leading electronics companies.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Masaru Ibuka was co-founder of Sony Corporation Target entity description: Masaru Ibuka was a pioneering Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a key figure in the development of Japan’s postwar technology industry.
-
A.
Akio Morita
Akio Morita was a Japanese businessman and co-founder of Sony who played a key role in transforming it into a global electronics and entertainment giant.
-
B.
Fusajiro Yamauchi
Fusajiro Yamauchi was a Japanese entrepreneur best known for establishing the company that would evolve into the global video game giant Nintendo.
-
C.
Masayoshi Son
Masayoshi Son is a Japanese billionaire entrepreneur and investor, best known as the founder and CEO of SoftBank Group and for his influential role in global technology investing.
-
D.
Mikihiro Iwata
Mikihiro Iwata is a Japanese anime industry figure best known as the founder of the animation studio A-1 Pictures.
-
E.
Konosuke Matsushita
Konosuke Matsushita was a Japanese industrialist and entrepreneur who founded Panasonic and built it into one of the world’s leading electronics companies.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese businessperson
ⓘ
electronics engineer ⓘ entrepreneur ⓘ human ⓘ |
| awardReceived |
Grand Cordon of the Order of the Sacred Treasure
ⓘ
IEEE Founders Medal ⓘ Order of Culture (Japan) ⓘ
linked to:
Order of Culture
|
| causeOfDeath | heart failure ⓘ |
| coFounded |
Sony Corporation
ⓘ
linked to:
Sony
Tokyo Tsushin Kogyo K.K. ⓘ
linked to:
Tokyo Tsushin Kogyo
|
| countryOfCitizenship | Japan ⓘ |
| dateOfBirth | 1908-04-11 ⓘ |
| dateOfDeath | 1997-12-19 ⓘ |
| educatedAt | Waseda University ⓘ |
| employer |
Sony Corporation
ⓘ
linked to:
Sony
|
| era |
Shōwa period Japan
ⓘ
linked to:
Showa era
|
| fieldOfWork |
audio technology
ⓘ
consumer electronics ⓘ electronics ⓘ |
| founded |
Tokyo Tsushin Kogyo K.K.
ⓘ
linked to:
Tokyo Tsushin Kogyo
|
| genreOfWriting | child education ⓘ |
| industry |
consumer electronics
ⓘ
telecommunications equipment ⓘ |
| influenced |
Japanese consumer electronics industry
ⓘ
global audio and video technology markets ⓘ |
| knownFor |
leadership in postwar reconstruction of Japanese industry
ⓘ
vision for miniaturized, high-quality consumer electronics ⓘ |
| languageOfWorkOrName | Japanese ⓘ |
| memberOf | Science Council of Japan ⓘ |
| name | Masaru Ibuka NERFINISHED ⓘ |
| nativeName | 井深大 ⓘ |
| notableFor |
co-founding Sony Corporation
ⓘ
contributions to Japan’s postwar electronics industry ⓘ |
| notableWork |
book "Kindergarten Is Too Late"
ⓘ
linked to:
Kindergarten Is Too Late
development of Trinitron television technology ⓘ development of transistor radios at Sony ⓘ promotion of compact cassette and portable audio ⓘ |
| partnerInBusinessWith | Akio Morita ⓘ |
| placeOfBirth | Nikkō, Tochigi, Japan ⓘ |
| placeOfDeath |
Tokyo, Japan
ⓘ
linked to:
Tokyo
|
| positionHeld |
chairman of Sony Corporation
ⓘ
president of Sony Corporation ⓘ
linked to:
Kazuo Hirai
|
| predecessor | Akio Morita as president of Sony Corporation ⓘ |
| religion | Buddhism ⓘ |
| residence |
Tokyo, Japan
ⓘ
linked to:
Tokyo
|
| spouse | Yoshiko Ibuka ⓘ |
| workLocation |
Tokyo, Japan
ⓘ
linked to:
Tokyo
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Masaru Ibuka was co-founder of Sony Corporation Description of subject: Masaru Ibuka was a pioneering Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a key figure in the development of Japan’s postwar technology industry.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.