Top corporate institutions by normalized WFC

The tables show Japan’s leading institutions ranked by normalized weighted fractional count (WFC), an indicator of an institution’s high-quality research output as a proportion of total output in the natural sciences (NS) from 2012 to 2017. This is derived by dividing an institution’s WFC in the Nature Index (WFC 2012–2017) by its total number of natural sciences articles in Scopus (Scopus NS articles 2012–2017). Also listed are an institution’s total number of articles in the Nature Index (AC 2012–2017) and the percentage of its total articles in Scopus that are in the natural sciences (NS articles (%) 2012–2017).

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PositionPosition	Institution	Sector	Normalized WFC 2012–2017	Nature Index WFC 2012–2017	Scopus NS articles 2012–2017	Nature Index AC 2012–2017	NS articles (%) 2012–2017
1	Nippon Telegraph and Telephone Corporation (NTT)	corporate	0.0634	108.18	1,706	190	50.8%
2	Rigaku Corporation	corporate	0.0527	11.38	216	58	100.0%
3	Shimadzu Corporation	corporate	0.0495	14.20	287	62	92.0%
4	Toshiba Corporation	corporate	0.0443	38.76	874	66	70.2%
5	Toyota Group	corporate	0.0387	70.01	1,807	137	77.5%
6	FujiFilm Corporation	corporate	0.0330	6.37	193	60	79.1%
7	JEOL Ltd.	corporate	0.0304	10.92	359	81	98.4%
8	Hitachi, Ltd.	corporate	0.0178	31.36	1,766	148	73.5%
9	Daiichi Sankyo Co., Ltd.	corporate	0.0171	11.01	645	75	70.6%
10	NEC Corporation	corporate	0.0169	8.56	507	57	56.3%
11	Takeda Pharmaceutical Company Limited	corporate	0.0163	18.40	1,130	74	83.6%
12	Otsuka Holdings Co., Ltd.	corporate	0.0140	6.26	448	50	75.5%
13	Mitsubishi Group	corporate	0.0131	19.52	1,492	122	74.9%