We offer optimal solutions to contribute to customers' time.

CHRONOS is the god of time.
CHRONOS provides analog ICs, memories and other semiconductor products, crystal devices, sensors, connectors, printed circuit boards and other electronic components with significant competitiveness in Japan and around the world to make timely proposals of solutions that are best suited to customers' needs.

Handling manufacturer

Asahi Kasei Microdevices

Asahi Kasei Microdevices (AKM) offer a variety of advanced sensing devices based on compound semiconductor technology and sophisticated IC products featuring analog/digital mixed-signal technology.

ATP Electronics

For more than 25 years, ATP have been providing high-reliability, high-durability DRAM memory modules and NAND flash storage products to industrial, enterprise and automotive equipment around the world. ATP will continue to provide memory products to meet the increasing demand for high-capacity and high-speed data processing applications in the future.

Seiko Epson

A commitment to relentlessly pursuing advances in energy efficiency, miniaturization, and precision and accuracy is embedded in Epson's DNA. And today, our efficient, compact, and precision technologies are the source of our strength. These technologies originated from products such as the Seiko Quartz Astron 35SQ wristwatch. Announced in 1969, the Astron was the world's first quartz watch and, with a daily rate of ±0.2 seconds, offered unprecedented accuracy. The technology for reducing the size and power consumption of the watch astonished manufacturers around the world. Epson has continued to develop these efficient, compact, and precision technologies over the decades, and today they provide the foundation for Epson's core devices, printers, projectors, wearable products, robots, and more.

ELAN Microelectronics

ELAN Microelectronics is one of the world's leading manufacturers of human-machine interface chips, specializing in touchscreen controllers, touchscreen controllers with pens, and touchpad modules. The company's products are used in a wide variety of products, among which is the world's #1 market share for touchscreen chips and pointing devices for notebook applications and the world's #1 market share for touchpad modules.

E Ink

E Ink is the originator, pioneer and commercial leader in ePaper technology. The company delivers its advanced display products to the world's most influential brands and manufacturers, enabling them to install extremely durable, low power displays in previously impossible or unimaginable applications and environments. E Ink’s corporate philosophy centers around delivering revolutionary products, excellent user experiences, and environmental benefits through advanced technology development.

Etron Technology

Etron Technology is a fabless manufacturer specializing in buffer memory and system-on-a-chip. The company provides consumer DRAM products and system-on-a-chip (SOC) products such as 3D imaging and gesture sensing integrated web camera controller ICs (Etron's subsidiary, eYs3D's brand). With the flexibility and agility of a fabless manufacturer and the establishment of partnerships with leading foundry manufacturers, we are able to provide proactive customer service.

Genesys Logic

Genesys Logic is a fabless IC design company. We specialize in high-speed interface technologies used in consumer and computing applications, providing products based on interfaces such as USB 4.0/3.2/2.0, SD 7.0/4.0/3.0, and PCIe Gen4/Gen3.

Gowin Semiconductor Corporation

Founded in 2014, Gowin Semiconductor Corp., headquartered with major R&D in China, has the vision to accelerate customer innovation world wide with our programmable solutions. Our commitment to technology and quality enables customers to reduce the total cost of ownership from using FPGA on their production boards. Our offerings include a broad portfolio of programmable logic devices, design software, intellectual property (IP) cores, reference designs, and development kits. We strive to serve customers in the consumer, industrial, communication, medical, and automotive markets worldwide.


HOLTEK has various 8-bit microcomputers (general-purpose, home appliances, healthcare, PC peripherals, portable), 32-bit ARM microcomputer (M0 +, M3), touch keys, various display drivers (LCD, LED, VFD, ePaper),various analog solution. We offer various cost effective solutions to make a significant contribution in improving the market competitiveness of customer products.

Integrated Silicon Solution Inc.

ISSI is a memory manufacturer that utilizes the advantages of a fabless manufacturer and superior design technology to achieve long-term stable supply and high quality. We provide memory products suitable for industrial equipment and automotive applications. Our main products include SRAM products, a wide range of DRAM products ranging from EDO to the latest DDR4/LPDDR4, NOR flash products, and unique memory products with ECC.


Molex makes a connected world possible by enabling technology that transforms the future and improves lives. With a presence in more than 40 countries, Molex offers a full range of connectivity products, services and solutions for markets that include data communications, medical, industrial, automotive and consumer electronics.

Seiko NPC Corporation

Seiko NPC Corporation was founded in 1975 as a semiconductor manufacturer of the Seiko Holdings Group. Each Seiko Holdings Group company, using creativity and technologies specific to it, ships products with high added value over a broad area. Among the group companies, Seiko NPC specializes in semiconductors, benefiting from the synergy provided by its group membership.

PixArt Imaging

Pixart Imaging specializes in integrated chip design for CMOS image sensing technology and navigation, specializes in imaging applications related to CMOS image sensors (CIS) and capacitive touch panel controllers, and is the world's leading supplier of optical mouse sensor chips for PC and high-end gaming applications.


Shenzhen Refond Optoelectronics Co., Ltd. is the first SMD LED manufacturer in China. The company offers high-quality LED products and modules for lighting, home appliances, automobiles, plant growth, and security applications.


SEMIKRON INTERNATIONAL GmbH offers extended lineups of products from chips to modules in the field of power semiconductors and contributes to all sorts of energy saving industries with both its industrial standard packages and flexible, expandable packages. Today, SEMIKRON has a staff of more than 3,000 people in 25 subsidiaries worldwide. Its international network with production sites in Germany, Brazil, China, France, India, Italy, Korea, Slovakia and the US ensures fast and comprehensive service for customers.

Taiwan Semiconductor

Taiwan Semiconductor Co., Ltd. (TSC)'s core products are discrete semiconductors including rectifiers, small signal diodes, analog ICs, and MOSFETs. TSC's products have been applied to equipment in a range of fields, such as automobiles, home appliances, communication and information technologies, industrial equipment, new energy, and photovoltaics; ensuring world-class quality. By looking ahead and ceaselessly endeavoring in their research and development, TSC is committed to continuing to be a company that fully satisfies global market demand as it grows and evolves with the diversification of electrical products.

Touch Panel Systems

Touch Panel Systems K.K. develops, manufactures, and sells touchscreen related products for easy and simple operability with interfaces between humans and computers. A manufacturer specializing in touchscreens boasts a lineup of products with industry-leading technology systems—with a wide array of products, including high-quality, highly reliable touchscreen panels (components), touchscreen monitors, and all-in-one touchscreen computers.

Western Digital

Western Digital is a storage company that provides a wide range of NAND flash memory products and hard disk drive storage products for consumer, industrial and automotive applications. The company holds more than 14,000 patents and supports the storage world with the world's smallest 2D NAND and the most advanced 3D NAND technology. We are also a vertically integrated manufacturer that consistently designs, develops and manufactures the components that are incorporated into our products.

Wuxi Vision Peak Technology

Wuxi Vision Peak Technology(Weifeng) develops, manufactures and sells small / medium size electronic paper displays mainly used for retail store price tags / POPs and factory / logistics tags. E Ink electrophoretic display is used,they have an abundant lineup that can display 3 colors such as 2 colors from monochrome to white / black / red, white / black / yellow, and you can choose according to your needs.


CHRONOS is a division company of Marubun Corporation that was launched in April 2016.
We handle a wide variety of products such as domestic and foreign characteristic semiconductors, sensors, memories and connectors.
In addition to introducing these product groups, we will meet the true expectations of our customers by proposing an optimal solution in combination.

CHRONOS Company President
Masakazu Fujiwara