What share of managers are women at Yamaichi Kagaku Kogyo Co., Ltd.?

10.8%, as reported to MHLW's women's-advancement database (as of September 2025).

What is the gender pay gap at Yamaichi Kagaku Kogyo Co., Ltd.?

Women's average pay as a percentage of men's: 79.8% across all employees, 81.9% among regular employees, 44.0% among non-regular employees. This compares average pay, not pay for the same job.

How many fathers take childcare leave at Yamaichi Kagaku Kogyo Co., Ltd.?

75.0% of eligible men took childcare leave.

How long do employees stay at Yamaichi Kagaku Kogyo Co., Ltd.?

Average tenure is 12.3 years for men and 8.8 years for women.

← Chemicals in Tokyo

Chemicals·Tokyo·101–300 employees

Yamaichi Kagaku Kogyo Co., Ltd.

Japanese name: 山一化学工業株式会社 · English rendering · Corporate number 1010501014109 · 日本語

Yamaichi Kagaku Kogyo Co., Ltd. (山一化学工業株式会社), a chemicals employer in Tokyo with 101–300 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 10.8% of its managers are women, women's average pay is 81.9% of men's among regular employees, 75.0% of eligible fathers took childcare leave (as of September 2025).

Women's advancement and leave

Women in management

10.8%

Median, same industry and size: 10.0%

Women among officers

0.0%

Median, same industry and size: 0.0%

Women among new hires

5.0%

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

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

79.8%

Median, same industry and size: 76.0%

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

81.9%

Median, same industry and size: 79.6%

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

44.0%

Median, same industry and size: 59.3%

Men taking childcare leave

75.0%

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

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

Working hours and retention

Average monthly overtime

Not published

Median, same industry and size: 8.2 hrs

Paid leave taken

Not published

Median, same industry and size: 79.1%

Average tenure, men

12.3 yrs

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

Average tenure, women

8.8 yrs

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

Chemicals in Tokyo

Mitsubishi Chemical CorporationWomen managers 6.6%
Otsuka Pharmaceutical Co., Ltd.Women managers 13.6%
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

Every chemicals employer in Tokyo →

Questions this page answers

What share of managers are women at Yamaichi Kagaku Kogyo Co., Ltd.?: 10.8%, as reported to MHLW's women's-advancement database (as of September 2025).
What is the gender pay gap at Yamaichi Kagaku Kogyo Co., Ltd.?: Women's average pay as a percentage of men's: 79.8% across all employees, 81.9% among regular employees, 44.0% among non-regular employees. This compares average pay, not pay for the same job.
How many fathers take childcare leave at Yamaichi Kagaku Kogyo Co., Ltd.?: 75.0% of eligible men took childcare leave.
How long do employees stay at Yamaichi Kagaku Kogyo Co., Ltd.?: Average tenure is 12.3 years for men and 8.8 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.