What share of managers are women at Otsuka Pharmaceutical Co., Ltd.?

13.6%, as reported to MHLW's women's-advancement database (as of December 2025).

What is the gender pay gap at Otsuka Pharmaceutical Co., Ltd.?

Women's average pay as a percentage of men's: 80.4% across all employees, 83.3% among regular employees, 53.9% among non-regular employees. This compares average pay, not pay for the same job.

How many fathers take childcare leave at Otsuka Pharmaceutical Co., Ltd.?

91.0% of eligible men took childcare leave.

How much overtime do employees at Otsuka Pharmaceutical Co., Ltd. work, and how much paid leave do they take?

Average overtime is 4.2 hours a month (median for the same industry: 11.0 hours), as reported to MHLW's women's-advancement database.

How long do employees stay at Otsuka Pharmaceutical Co., Ltd.?

Average tenure is 16.5 years for men and 13.3 years for women.

← Chemicals in Tokyo

Chemicals·Tokyo·5001+ employees

Otsuka Pharmaceutical Co., Ltd.

Japanese name: 大塚製薬株式会社 · English rendering · Corporate number 7010001012986 · 日本語

Otsuka Pharmaceutical Co., Ltd. (大塚製薬株式会社), a chemicals employer in Tokyo with 5001+ employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 13.6% of its managers are women, women's average pay is 83.3% of men's among regular employees, 91.0% of eligible fathers took childcare leave (as of December 2025).

Women's advancement and leave

Women in management

13.6%

Median, same industry: 10.9%

Women among officers

14.6%

Median, same industry: 5.2%

Women among new hires

34.3%

For one employment category the company defines, so not comparable with other employers.

Women's pay as % of men's, all

80.4%

Median, same industry: 75.5%

Women's pay as % of men's, regular

83.3%

Median, same industry: 78.5%

Women's pay as % of men's, non-regular

53.9%

Median, same industry: 65.4%

Men taking childcare leave

91.0%

For one employment category the company defines, so not comparable with other employers.

Eruboshi (level 3)Kurumin

The pay figures compare women's average pay with men's, not pay for the same job. Data as of December 2025.

Working hours and retention

Average monthly overtime

4.2 hrs

Median, same industry: 11.0 hrs

Paid leave taken

Not published

Median, same industry: 77.7%

Average tenure, men

16.5 yrs

For one employment category the company defines, so not comparable with other employers.

Average tenure, women

13.3 yrs

For one employment category the company defines, so not comparable with other employers.

Chemicals in Tokyo

Mitsubishi Chemical CorporationWomen managers 6.6%
Fujifilm Co., Ltd.Women managers 7.6%
JSR Co., Ltd.Women managers 5.9%
Merck in JapanWomen managers 28.3%
RM Tohcello Co., Ltd.Women managers 5.2%
GSK in JapanWomen managers 26.7%
Kose Cosmetics Hanbai Co., Ltd.1001–5000 employees
Sanofi Co., Ltd.Women managers 36.0%

Every chemicals employer in Tokyo →

Questions this page answers

What share of managers are women at Otsuka Pharmaceutical Co., Ltd.?: 13.6%, as reported to MHLW's women's-advancement database (as of December 2025).
What is the gender pay gap at Otsuka Pharmaceutical Co., Ltd.?: Women's average pay as a percentage of men's: 80.4% across all employees, 83.3% among regular employees, 53.9% among non-regular employees. This compares average pay, not pay for the same job.
How many fathers take childcare leave at Otsuka Pharmaceutical Co., Ltd.?: 91.0% of eligible men took childcare leave.
How much overtime do employees at Otsuka Pharmaceutical Co., Ltd. work, and how much paid leave do they take?: Average overtime is 4.2 hours a month (median for the same industry: 11.0 hours), as reported to MHLW's women's-advancement database.
How long do employees stay at Otsuka Pharmaceutical Co., Ltd.?: Average tenure is 16.5 years for men and 13.3 years for women.

Japan Human Capital Data 2026

Every figure for about 36,000 unlisted employers and 3,789 listed companies at once: percentile ranks within each industry and size band, women among supervisors, ten-year retention by gender, women's leave uptake, and every foreign-owned subsidiary flagged with its parent. In a members' dashboard and as Excel and CSV.

What Professional includes

Source: Ministry of Health, Labour and Welfare, women's-advancement database (open data), as of 2026-10-06; figures are self-reported by each employer and checked for plausibility by The Hardest Market. 女性の活躍推進企業データベースオープンデータ（2026年10月6日時点）を加工して作成.