Epson 2011 Annual Report Download - page 7

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6
(2) Electronic devices business segment
This segment comprises the quartz device business, the semiconductor business and the display business. This
segment mainly includes the development, manufacture and sales of crystal oscillators, CMOS LSIs and
HTPS-TFT panels for 3LCD projectors.
Based on their ultra-fine and ultra-precision processing technologies, low-power consumption technologies and
high-density mounting technologies, businesses in this segment offer a wide range of electronic devices that are
compact, thin, and which save energy. Products are aimed at handled device and various other applications.
Products are also developed and manufactured to respond to the needs of other businesses within the Group.
Details of the main businesses are as follows.
Quartz device business
The quartz device business is responsible for the development, manufacture and sales of crystal units, crystal
oscillators, quartz sensors and optical devices for industrial and consumer products in a wide range of markets.
Semiconductor business
The semiconductor business is responsible for the development, manufacture and sales of mainly CMOS LSIs
with low drive voltage, low power consumption and high durability mainly for handheld devices and other
information communications equipment, and PC peripherals. It also develops semiconductors and base
technologies for other Group businesses.
Display business
The display business is responsible for the development, manufacture and sales of HTPS-TFT panels for 3LCD
projectors, and others.
Epson Imaging Devices Corporation, a consolidated subsidiary of the Company, transferred part of its business
assets related to the small- to medium-sized TFT-LCD business to the Sony Group as of April 1, 2010, thereby
ceasing the related production as of December 31, 2010.
The major subsidiaries and affiliates involved in each segment are as follows:
Business category Main products Main subsidiaries and affiliates
Manufacturing companies Sales companies
Quartz device business Crystal units,
crystal oscillators,
quartz sensors,
optical devices and
others
Epson Toyocom
Corporation
Akita Epson Corporation
Epson Toyocom Malaysia
Sdn. Bhd.
Epson Toyocom Corporation
Epson Imaging Devices
Corporation
Epson Electronics America, Inc.
Epson Europe Electronics GmbH
Epson Hong Kong Ltd.
Epson Taiwan Technology &
Trading Ltd.
Epson Singapore Pte. Ltd.
Semiconductor
business
Mainly CMOS LSIs Singapore Epson Industrial
Pte. Ltd.
Display business HTPS-TFT panels
for 3LCD
projectors and small
and medium-sized
LCDs
Epson Imaging Devices
Corporation
Suzhou Epson Co., Ltd.
Epson Engineering
(Shenzhen) Ltd.
(3) Precision products business segment
This segment comprises the watch business, the optical products business, and the factory automation products
business. This segment mainly includes the development, manufacture and sales of watches, watch movements,
plastic corrective lenses, horizontally articulated robots and others.