Masahiro Hosoe細江 正大

President & Representative Director, Taiyo Technolex Co.,Ltd.

Net worth (est.)
¥476M
#3050 in Japan
Listed shares · incl. ¥391M via asset-management cos.
Executive pay
¥11.4Mest.
Average for the same officer category
Dividends (a year)
¥11.7M
#2696
Own name ¥2.1M / via companies ¥9.6M
Total income (est.)
¥23.0M
#4567
Pay + dividends, before tax
Taxes (est.)
¥2.2M
#5139
Income tax ¥1.3M / resident tax ¥882,600
Other assets (est.)
¥67.9M
¥544M with shares
After-tax income 2023–2025 (incl. ¥26.3M from share sales), before spending
Inheritance tax (est.)
¥46.0M
#3708
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: 株式会社細江ホールディングスest. (their holdings are included in net worth)

Holdings

CompanyHeld bySharesStakePriceValueDividends
Taiyo Technolex Co.,Ltd.
6663 · FY ending Dec 2025
株式会社細江ホールディングス 1,600,000 26.73% ¥244 ¥391M ¥9.6M
Taiyo Technolex Co.,Ltd.
6663 · FY ending Dec 2025 · President & Representative Director
Own name 348,600 5.82% ¥244 ¥85.2M ¥2.1M

By year

YearNet worthPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2025¥476M¥11.4M¥11.7M¥23.0M¥2.2M¥9.5M¥26.3M
2024¥509M¥8.5M¥6.3M¥14.8M¥1.3M¥7.4M—
2023¥508M¥11.8M¥6.2M¥18.0M¥2.2M¥9.3M—

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 ¥399M = listed shares in own name ¥85.2M + shares held via asset-management companies ¥246M (value ¥391M less 37% corporate tax on unrealized gains) + other assets (est.) ¥67.9M

Total inheritance tax paid: ¥46.0M (11.5% of the estate).

HeirInheritsTaxAfter tax
Spouse¥200M¥0¥200M
Each child¥99.9M¥23.0M¥76.9M

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