Koichiro Sakamoto坂本 幸一郎

Major shareholder of TAUNS Laboratories, Inc.

Net worth (est.)
¥170M
#10289 in Japan
Listed shares ¥162M + other assets ¥7.7M
Executive pay
—
Not disclosed
Dividends (a year)
¥9.6M
#3843
Total income (est.)
¥9.6M
#15203
Pay + dividends, before tax
Taxes (est.)
¥2.0M
#14293
Income tax ¥1.5M / resident tax ¥485,900
Other assets (est.)
¥7.7M
After-tax income 2026, before spending
Inheritance tax (est.)
¥9.7M
#10286
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.

Holdings

CompanyHeld bySharesStakePriceValueDividends
TAUNS Laboratories, Inc.
197A · FY ending Jun 2026
Own name 343,500 0.32% ¥472 ¥162M ¥9.6M

Inheritance tax (estimate)

Estate ¥170M = listed shares in own name ¥162M + other assets (est.) ¥7.7M

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

HeirInheritsTaxAfter tax
Spouse¥84.9M¥0¥84.9M
Each child¥42.5M¥4.9M¥37.6M

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