Hiroyuki Kashima

Weeds Co., Ltd. operates drugstores. It sells prescription and over-the-counter drugs. The company was founded on August 29, 1995 and is headquartered in Kitakatsushika, Japan.

Leaf KK is a holding company that owns and operates a chain of drug stores. It distributes and markets pharmaceutical products, quasi drugs, cosmetics, and medical supplies. The company was founded in July 2004 and is headquartered in Tokyo, Japan.

B Like YK engages in the dispensing pharmacy business. The company was founded on September 22, 1999 and is headquartered in Kawasaki, Japan.

VIAMS, Inc. provides information service for medical care use. The company was founded on February 3, 1990 and is headquartered in Tokyo, Japan.

Sophia Research Institute, Inc. engages in the design, development, operation, maintenance of EC site, web service, video content distribution system, network system, cloud system, data center. It also provides consulting for data analysis tool introduction support and outsourcing service for logistics support and business improvement. The company was founded on December 16, 2004 and is headquartered in Tokyo, Japan.

Sensyu Pharmacy YK engages in pharmaceutical sales, and provides out-of-hospital prescription information, medical information, pharmacy business consulting, home medical support, and real estate leasing. The company was founded in October 1987 and is headquartered in Osaka, Japan.

Wakaba Yakyoku YK engages in the dispensing pharmacy business. The company was founded on February 19, 2004 and is headquartered in Gobo, Japan.