Ichiro Masumura増村 一郎

Chairman of the Board, b-style holdings,Inc.

Net worth (est.)
¥180M
#4526 in Japan
Listed shares · incl. ¥133M via asset-management cos.
Executive pay
¥33.0Mest.
Average for the same officer category
Dividends (a year)
¥0
Total income (est.)
¥33.0M
#3972
Pay + dividends, before tax
Taxes (est.)
¥11.9M
#3570
Income tax ¥9.0M / resident tax ¥2.9M
Other assets (est.)
¥38.7M
¥219M with shares
After-tax income 2025–2026, before spending
Inheritance tax (est.)
¥9.7M
#5606
If a spouse and two children inherit in statutory shares (change)

Other assets (est.): the sum of each year's after-tax income (pay + dividends in own name − estimated taxes and social insurance) dividends retained by asset-management companies (less about 20% corporate tax), and proceeds from share sales (the drop in shares from the previous year × share price, less 20.315% tax, or about 30% for asset-management companies), for the years we have data. Spending, real estate, donations and savings from earlier years are not reflected.

Asset-management companies: 合同会社ファースト・ステージ代表社員増村一郎est. (their holdings are included in net worth)

Holdings

CompanyHeld bySharesStakePriceValueDividends
b-style holdings,Inc.
302A · FY ending Mar 2026
合同会社ファースト・ステージ代表社員増村一郎 228,500 15.70% ¥583 ¥133M —
b-style holdings,Inc.
302A · FY ending Mar 2026 · Chairman of the Board
Own name 80,000 5.49% ¥583 ¥46.7M —

By year

YearNet worthPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2026¥180M¥33.0M¥0¥33.0M¥11.9M¥19.1M—
2025¥429M¥34.0M¥0¥34.0M¥12.4M¥19.6M—

Grouped by the calendar year of each company's fiscal year-end. Years in which the person was not among the top 10 shareholders of a company exclude that company.

Inheritance tax (estimate)

Estate ¥169M = listed shares in own name ¥46.7M + shares held via asset-management companies ¥84.0M (value ¥133M less 37% corporate tax on unrealized gains) + other assets (est.) ¥38.7M

Total inheritance tax paid: ¥9.7M (5.7% of the estate).

HeirInheritsTaxAfter tax
Spouse¥84.7M¥0¥84.7M
Each child¥42.3M¥4.8M¥37.5M

Japanese inheritance tax, assuming the estate is split in statutory shares. A spouse pays no tax up to ¥160M or the statutory share, whichever is larger. Family size is not in the securities reports, so you can choose it (with no children, parents or siblings also become heirs, so the real figure differs). Business-succession deferrals, lifetime gifts, donations to foundations, debts and other reliefs are not reflected.

Estimates from annual securities reports (EDINET). The English name is romanized automatically and may differ from the spelling the person uses. Methodology · Corrections and removal requests: contact