LeaderPortfolio
Erikawa
Yoichi Erikawa
Rank #3298
JAPANMedia & EntertainmentVideo games

Yoichi Erikawa

Net Worth
$1.031B
-0.19% (24h)
Yoichi Erikawa, co-founder of Koei Tecmo Holdings, is a prominent figure in the video game industry. With an estimated net worth of $1.2 billion as of March 2026, Erikawa has amassed his wealth through his pioneering work in video game development. His career, spanning over four decades, has been marked by significant achievements, including the creation of the historical simulation game Nobunaga's Ambition, and the popular Dynasty Warriors and Samurai Warriors series. Despite stepping down from the CEO role in 2025, Erikawa remains a key figure as Chairman, continuing to shape the strategic direction of Koei Tecmo.

How to read Yoichi Erikawa's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Yoichi Erikawa, we anchor the narrative to Video games and Video games, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $1.031B alongside global rank #3298, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (JAPAN) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life

Yoichi Erikawa was born in 1950 in Tochigi Prefecture, Japan. He graduated from Keio University with a degree in Commerce and Economics. After graduating, he decided to pursue his passion for programming after his family's rural dyestuffs business failed. Erikawa's interest in history, which he developed in high school, would later influence his career.

Rise to Success

Erikawa, along with his wife Keiko Erikawa, founded Koei in July 1978. Initially, the company focused on personal computer sales and made-to-order business software. However, Erikawa's personal interest in computer games led him to create a war game set in 16th-century Japan, titled Kawanakajima no Kassen, which sold 10,000 copies. Recognizing the demand for more games, he developed Nobunaga's Ambition in 1983, a historical simulation game that achieved significant success and established Koei's presence in the gaming industry. The game became the prototype for Koei's history simulation series.

Key Business Strategies

Koei Tecmo's success is rooted in its focus on historical simulation games, which catered to an adult audience. This strategic decision set the company apart in the market and allowed it to build a loyal customer base. The company also expanded its offerings to include popular action games like Dynasty Warriors and Samurai Warriors series. Erikawa's leadership was characterized by a commitment to innovation and quality, which became hallmarks of the company's brand.

Philanthropy

Information on Yoichi Erikawa's specific philanthropic initiatives is unavailable in the search results.

Career Timeline

2025

Stepped Down as CEO

Stepped down as CEO of Koei Tecmo, becoming Chairman.

2009

Merger with Tecmo

Merged with Tecmo to form Tecmo Koei Holdings (later Koei Tecmo Holdings).

1983

Developed Nobunaga's Ambition

Released Nobunaga's Ambition, a historical simulation game that established Koei in the gaming industry.

1978

Founded Koei

Co-founded Koei (later Koei Tecmo) with his wife, Keiko Erikawa.

Philanthropic Impact

EducationUndisclosed

Foundation of Erikawa Education

Provides scholarships.

Key Business Ventures & Holdings

CompanyStakeValue
Koei Tecmo Holdings

Net Worth History

In-Depth Analysis

Early Life

Yoichi Erikawa was born in 1950 in Tochigi Prefecture, Japan. He graduated from Keio University with a degree in Commerce and Economics. After graduating, he decided to pursue his passion for programming after his family's rural dyestuffs business failed. Erikawa's interest in history, which he developed in high school, would later influence his career.

Rise to Success

Erikawa, along with his wife Keiko Erikawa, founded Koei in July 1978. Initially, the company focused on personal computer sales and made-to-order business software. However, Erikawa's personal interest in computer games led him to create a war game set in 16th-century Japan, titled Kawanakajima no Kassen, which sold 10,000 copies. Recognizing the demand for more games, he developed Nobunaga's Ambition in 1983, a historical simulation game that achieved significant success and established Koei's presence in the gaming industry. The game became the prototype for Koei's history simulation series.

Key Business Strategies

Koei Tecmo's success is rooted in its focus on historical simulation games, which catered to an adult audience. This strategic decision set the company apart in the market and allowed it to build a loyal customer base. The company also expanded its offerings to include popular action games like Dynasty Warriors and Samurai Warriors series. Erikawa's leadership was characterized by a commitment to innovation and quality, which became hallmarks of the company's brand.

Philanthropy

Information on Yoichi Erikawa's specific philanthropic initiatives is unavailable in the search results.

Data Sources & Methodology

Figures for Yoichi Erikawa are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.