Hisao Hayama羽山 尚

Major shareholder of Riso Kagaku Corporation

Net worth (est.)
¥3.2B
#1404 in Japan
Listed shares ¥2.5B + other assets ¥730M
Executive pay
—
Not disclosed
Dividends (a year)
¥112M
#729
Total income (est.)
¥112M
#1643
Pay + dividends, before tax
Taxes (est.)
¥49.7M
#1491
Income tax ¥40.2M / resident tax ¥9.5M
Other assets (est.)
¥730M
After-tax income 2017–2026 (incl. ¥116M from share sales), before spending
Inheritance tax (est.)
¥772M
#1368
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
Riso Kagaku Corporation
6413 · FY ending Mar 2026
Own name 2,235,000 3.55% ¥1,127 ¥2.5B ¥112M

By year

YearNet worthListed sharesPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2026¥3.2B¥2.5B—¥112M¥112M¥49.7M¥62.0M¥53.9M
2025¥3.5B¥2.9B—¥115M¥115M¥51.1M¥63.5M—
2024¥4.1B¥3.6B—¥115M¥115M¥51.1M¥63.5M¥47.4M
2023¥3.1B¥2.7B—¥140M¥140M¥28.5M¥112M—
2022¥2.6B¥2.3B—¥117M¥117M¥23.7M¥93.1M—
2021¥2.0B¥1.7B—¥46.7M¥46.7M¥9.5M¥37.2M¥14.8M
2020¥2.1B¥1.9B—¥17.7M¥17.7M¥3.6M¥14.1M—
2019¥2.2B¥2.1B—¥70.8M¥70.8M¥14.4M¥56.4M—
2018¥2.5B¥2.3B—¥70.8M¥70.8M¥14.4M¥56.4M—
2017¥2.4B¥2.3B—¥70.8M¥70.8M¥14.4M¥56.4M—

Net worth for each year is listed shares plus the other assets (est.) accumulated up to that year. 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 ¥3.2B = listed shares in own name ¥2.5B + other assets (est.) ¥730M

Total inheritance tax paid: ¥772M (23.8% of the estate).

HeirInheritsTaxAfter tax
Spouse¥1.6B¥0¥1.6B
Each child¥812M¥386M¥426M

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