# Yasuhiro Matsumoto

> Japanese computer scientist

**Wikidata**: [Q102517427](https://www.wikidata.org/wiki/Q102517427)  
**Source**: https://4ort.xyz/entity/yasuhiro-matsumoto

## Summary
Yasuhiro Matsumoto is a Japanese computer scientist and programmer, also known by his aliases "mattn" and "まっつん". He resides in Osaka Prefecture, Japan, and is recognized for his work in software engineering. Matsumoto maintains a significant online presence, particularly on GitHub and Twitter, where he engages with the technical community in both Japanese and English.

## Biography
- **Nationality:** Japanese
- **Residence:** Osaka Prefecture, Japan
- **Known for:** Computer science and software engineering
- **Field(s):** Software Development, Computer Science
- **Languages:** Japanese, English
- **Occupation:** Programmer, Software Engineer

## Contributions
Based on the provided structured data, Yasuhiro Matsumoto is identified as a practitioner of software engineering and computer science. While specific project names or technical papers are not listed in the source text, his professional standing is evidenced by his classification as a programmer and software engineer.

He maintains a notable digital footprint. He operates under the username "mattn" on GitHub, a primary platform for software collaboration. His longevity and consistency in the field are highlighted by his Twitter activity, which began in April 2007. His authority in the field is further corroborated by the assignment of distinct identifiers from bibliographic and authority control systems, such as the VIAF ID and the National Diet Library Authority ID (Japan). His work involves writing computer software, placing him within the broader class of software developers.

## FAQs

### Q: What is Yasuhiro Matsumoto's profession?
A: He is a Japanese computer scientist and programmer who works as a software engineer.

### Q: What aliases does Yasuhiro Matsumoto use?
A: He is known by the aliases "mattn" and "まっつん" (Mattsun).

### Q: Where is Yasuhiro Matsumoto based?
A: He resides in the Osaka Prefecture in Japan.

### Q: When did Yasuhiro Matsumoto start his notable social media presence?
A: According to available data, his Twitter account was created on April 2, 2007.

## Why They Matter
Yasuhiro Matsumoto represents the active, modern cohort of Japanese software engineers who bridge local and international technical communities. His relevance is underscored by his formal recognition in academic and bibliographic databases, such as having a VIAF ID and an NDL Authority ID, which distinguishes him from general hobbyists.

His online influence is quantifiable; his social media following grew from approximately 17,783 in early 2021 to over 33,672 by early 2023, indicating a rapidly expanding reach and influence within the tech community. This growth suggests that his contributions to computer science and software engineering resonate with a large, global audience. By communicating in both Japanese and English, he plays a role in disseminating technical knowledge across linguistic barriers.

## Notable For
- Being a recognized **Japanese computer scientist** and **programmer**.
- Holding a **National Diet Library Authority ID** (001243631), signifying academic or professional notability.
- Maintaining a strong social media influence with over **33,000 followers** on Twitter (as of 2023).
- Operating the verified GitHub username **mattn**, a standard for professional software developers.
- Being recorded in the Virtual International Authority File (**VIAF**) with the ID 10147602664657642731.

## Body

### Identity and Background
Yasuhiro Matsumoto is a human instance identified as a Japanese computer scientist. He holds the occupation of a programmer, defined as a person who writes computer software and a subclass of a software developer. He is fluent in Japanese and English.

### Online Presence and Statistics
Matsumoto is active on major social and development platforms under the handle "mattn".
*   **Twitter:** His account (@mattn_jp) has been active since April 2, 2007.
    *   **Follower Growth:**
        *   17,783 followers (Jan 5, 2021)
        *   26,531 followers (Mar 2, 2022)
        *   33,672 followers (Feb 9, 2023) — marked as the preferred value in source data.
*   **GitHub:** His username is confirmed as "mattn".

### Authority Control
Matsumoto's identity is verified through several international and national databases:
*   **VIAF ID:** 10147602664657642731
*   **NDL Authority ID:** 001243631 (National Diet Library, Japan)
*   **Wikidata Description:** Japanese computer scientist

## References

1. gayanvoice / top-github-users