# Tadahiro Sekimoto

> Japanese businessman (1926–2007)

**Wikidata**: [Q6140449](https://www.wikidata.org/wiki/Q6140449)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tadahiro_Sekimoto)  
**Source**: https://4ort.xyz/entity/tadahiro-sekimoto

## Summary
Tadahiro Sekimoto (1926–2007) was a Japanese engineer, computer scientist, physicist, and businessperson best known for his leadership and internationally recognized contributions to engineering and communications. He received multiple top honors, including the IEEE Alexander Graham Bell Medal (1996) and the IEEE Medal of Honor (2004), and was a member of the U.S. National Academy of Engineering.

## Biography
- Born: 1926-11-14, Kobe, Japan
- Nationality: Japan (also listed as Empire of Japan with qualifier ending 1947)
- Education: University of Tokyo; Kobe University
- Known for: Leadership and major recognized contributions in engineering, computer science, and communications (as reflected by multiple international awards and memberships)
- Employer(s): National Academy of Engineering (member/affiliation)
- Field(s): Engineering, Computer Science, Physics, Business

## Contributions
Tadahiro Sekimoto’s concrete, documented outcomes in the public record are primarily visible through high-level recognitions and institutional membership that attest to his technical and leadership impact. He was awarded the Medal with Purple Ribbon in 1982 and the Edwin Howard Armstrong Achievement Award in the same year, signaling significant contributions to communications and engineering by that time. He received the IEEE Alexander Graham Bell Medal in 1996 and the IEEE Medal of Honor in 2004, two of the IEEE’s most prestigious awards; these awards formally recognize outstanding contributions to communications and electrical engineering. International honors include being named a Knight Commander of the Order of the British Empire and receiving the Legion of Honour (dates not specified in the source material). He was also made an honorary citizen of Shanghai in 1999. Sekimoto’s peers recognized him with election to the U.S. National Academy of Engineering (member id 29849). These awards and memberships represent concrete professional outcomes: peer-reviewed, institutional validation and formal honors for achievements in engineering and communications over multiple decades.

## FAQs
### Q: Who was Tadahiro Sekimoto?
A: Tadahiro Sekimoto was a Japanese engineer, computer scientist, physicist, and businessperson (1926–2007) who received major international awards in engineering and communications and was a member of the U.S. National Academy of Engineering.

### Q: When and where was he born and when did he die?
A: He was born on November 14, 1926, in Kobe, Japan, and he died on November 11, 2007, of a stroke; his manner of death is recorded as natural causes.

### Q: What are his most notable awards?
A: Major honors include the IEEE Alexander Graham Bell Medal (1996), IEEE Medal of Honor (2004), Medal with Purple Ribbon (1982), Edwin Howard Armstrong Achievement Award (1982), Knight Commander of the Order of the British Empire, and the Legion of Honour.

### Q: Was he a member of any national academies?
A: Yes. He was a member of the U.S. National Academy of Engineering (member id 29849).

## Why They Matter
The pattern and level of Tadahiro Sekimoto’s honors show lasting influence in engineering and communications. The IEEE Alexander Graham Bell Medal and the IEEE Medal of Honor are awarded for seminal technical contributions and leadership in electrical engineering and communications; receiving both places Sekimoto among a small group honored for sustained, high-impact work. National recognitions such as Japan’s Medal with Purple Ribbon and international honors including a knighthood (KBE) and the Legion of Honour indicate broad recognition beyond academic circles, reflecting influence across industry, international relations, and technology policy. Election to the U.S. National Academy of Engineering signals peer recognition at the highest institutional level in engineering. Without such leadership and contributions—documented by these awards and memberships—the global engineering and communications community would lack the specific technical and organizational advancements for which these recognitions were granted. Sekimoto’s career thus serves as a recorded touchstone for Japanese and international achievement in 20th-century engineering and business.

## Notable For
- Receiving the IEEE Medal of Honor (2004), one of IEEE’s highest distinctions.
- Receiving the IEEE Alexander Graham Bell Medal (1996) for contributions in communications.
- Being awarded the Medal with Purple Ribbon (1982) and the Edwin Howard Armstrong Achievement Award (1982).
- Being named a Knight Commander of the Order of the British Empire and receiving the Legion of Honour.
- Election as a member of the U.S. National Academy of Engineering (member id 29849).

## Body

### Early life and education
- Born 1926-11-14 in Kobe, Japan.
- Native name in kanji: 関本 忠弘. Name in kana: せきもと ただひろ.
- Educated at Kobe University and the University of Tokyo.

### Career and fields of work
- Occupations listed: engineer, computer scientist, physicist, businessperson.
- Fields of activity include engineering, computer science, physics, and business.
- Recognized internationally through membership in the U.S. National Academy of Engineering (id 29849).

### Awards and honors
- Medal with Purple Ribbon (1982).
- Edwin Howard Armstrong Achievement Award (1982).
- IEEE Alexander Graham Bell Medal (1996).
- IEEE Medal of Honor (2004).
- Knight Commander of the Order of the British Empire (KBE) — listed as an award received.
- Legion of Honour — listed as an award received.
- Honorary citizen of Shanghai (1999).

### Memberships and identifiers
- Member of the National Academy of Engineering.
- Various authority and identifier records: ISNI 0000000027167928; VIAF 53233677; GND 170505421; Library of Congress authority n88062015; FAST id 1488449; WorldCat entity id E39PBJf4b3b3Kc4y8Fj6xgpXVC.
- Languages: Japanese.

### Personal and death
- Child: Masakazu Sekimoto.
- Died 2007-11-11. Cause of death recorded as stroke. Manner of death recorded as natural causes.

### Bibliographic and catalog entries
- Listed in multiple international authority files and library records (ISNI, VIAF, GND, LOC).
- Wikipedia title: Tadahiro Sekimoto; entries in multiple language Wikipedias (bn, de, en, ja, pt, zh).

(All statements above are drawn from the provided source material.)

## References

1. [Source](https://ieeexplore.ieee.org/iel5/6/28951/1303371/1303371sb1.html)
2. [Source](https://www.ieee.org/content/dam/ieee-org/ieee/web/org/about/awards/recipients/bell-rl.pdf)
3. [Source](https://www.ieee.org/content/dam/ieee-org/ieee/web/org/about/awards/recipients/moh-rl.pdf)
4. [Source](http://www.shfao.gov.cn/wsb/node466/node703/node707/u1a14462.html)
5. [Source](https://www.comsoc.org/about/awards/career-awards/ieee-communications-society-edwin-howard-armstrong-achievement-award)
6. Virtual International Authority File
7. [Source](http://www.nytimes.com/2007/11/16/business/worldbusiness/16sekimoto.html?ref=business)
8. Freebase Data Dumps. 2013