Masaru Ibuka
E52715
Masaru Ibuka was a Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a pioneer of Japan’s postwar consumer electronics industry.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Masaru Ibuka canonical | 15 |
How this entity was disambiguated
This entity first appeared as the object of triple T321419 — 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 Context triple: [Sony, foundedBy, Masaru Ibuka]
-
A.
Minoru Ōta
Minoru Ōta was an Imperial Japanese Navy rear admiral who led the defense of the Oroku Peninsula during the Battle of Okinawa in World War II and became known for his final message praising the Okinawan people.
-
B.
Rikichi Tsukada
Rikichi Tsukada was a lieutenant general in the Imperial Japanese Army who led Japanese forces during World War II, including in the later stages of the Pacific War.
-
C.
Mineichi Koga
Mineichi Koga was an admiral in the Imperial Japanese Navy who succeeded Isoroku Yamamoto as commander-in-chief of the Combined Fleet during World War II.
-
D.
Ishizuka Eizō
Ishizuka Eizō was a Japanese colonial administrator who served as a high-ranking official in Taiwan during the period of Japanese rule.
-
E.
Hata Shunroku
Hata Shunroku was a senior Imperial Japanese Army general who played a major leadership role in Japan’s military campaigns during the Second Sino-Japanese War and World War II, later convicted as a war criminal.
- 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 Target entity description: Masaru Ibuka was a Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a pioneer of Japan’s postwar consumer electronics industry.
-
A.
Minoru Ōta
Minoru Ōta was an Imperial Japanese Navy rear admiral who led the defense of the Oroku Peninsula during the Battle of Okinawa in World War II and became known for his final message praising the Okinawan people.
-
B.
Rikichi Tsukada
Rikichi Tsukada was a lieutenant general in the Imperial Japanese Army who led Japanese forces during World War II, including in the later stages of the Pacific War.
-
C.
Mineichi Koga
Mineichi Koga was an admiral in the Imperial Japanese Navy who succeeded Isoroku Yamamoto as commander-in-chief of the Combined Fleet during World War II.
-
D.
Ishizuka Eizō
Ishizuka Eizō was a Japanese colonial administrator who served as a high-ranking official in Taiwan during the period of Japanese rule.
-
E.
Hata Shunroku
Hata Shunroku was a senior Imperial Japanese Army general who played a major leadership role in Japan’s military campaigns during the Second Sino-Japanese War and World War II, later convicted as a war criminal.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
business executive
ⓘ
company founder ⓘ electronics engineer ⓘ entrepreneur ⓘ human ⓘ |
| associatedWith | Akio Morita ⓘ |
| awardReceived |
Grand Cordon of the Order of the Sacred Treasure
ⓘ
IEEE Founders Medal ⓘ Order of Culture (Japan) ⓘ
linked to:
Order of Culture
|
| businessPartner | Akio Morita ⓘ |
| 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
ⓘ
linked to:
Showa era
|
| familyName | Ibuka ⓘ |
| fieldOfWork |
business management
ⓘ
consumer electronics ⓘ electronics engineering ⓘ |
| founded | Ibuka Laboratory ⓘ |
| gender | male ⓘ |
| givenName | Masaru ⓘ |
| industry |
audio equipment
ⓘ
consumer electronics ⓘ television manufacturing ⓘ |
| knownFor |
co-founding Sony Corporation
ⓘ
leadership in Japan’s postwar electronics industry ⓘ |
| languageOfWorkOrName | Japanese ⓘ |
| memberOf | Science Council of Japan ⓘ |
| name | Masaru Ibuka ⓘ |
| nationality | Japanese ⓘ |
| nativeName | 井深大 ⓘ |
| notableIdea |
emphasis on miniaturization in consumer electronics
ⓘ
focus on quality and innovation in Japanese manufacturing ⓘ |
| notablePublication | Kindergarten Is Too Late ⓘ |
| notableWork |
development of consumer tape recorders at Sony
ⓘ
development of transistor radios at Sony ⓘ pioneering Japan’s postwar consumer electronics industry ⓘ |
| placeOfBirth | Nikkō, Tochigi, Japan ⓘ |
| placeOfDeath |
Tokyo, Japan
ⓘ
linked to:
Tokyo
|
| positionHeld |
chairman of Sony Corporation
ⓘ
president of Sony Corporation ⓘ |
| residence |
Tokyo, Japan
ⓘ
linked to:
Tokyo
|
| 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 Description of subject: Masaru Ibuka was a Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a pioneer of Japan’s postwar consumer electronics industry.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.