JRC REVIEW No.56 Technical Reports

- Special Issues 1 : Quality Assurance -

This paper introduces JRC's QMS quality policies and their implementation, how its quality assurance system works, and its organizational structures for collecting, analyzing, and managing quality control information. Then, the paper discusses current activities that JRC is working on to make strong advances in improving quality assurance. The paper also describes activities that JRC is undertaking to comply with environmental regulations, such as the European RoHS Directives, for hazardous substances in products.

Junich Ochi
Shokichi Tanaka
Yoshiyuki Asada

- Special Issues 1 : Quality Assurance -

This paper describes JRC's quality assurance activities for motorcycle ETC with built-in antenna (the JRM-12 Series) . Public use of ETC for automobiles began in March, 2001. As the use of ETC for automobiles had become widespread, the demand for ETC for motorcycles increased. To meet this demand, JRC released Japan's first ETC for motorcycles, the JRM-11 series, in October, 2006. The JRM-11 consists of three separate components: the main unit, antenna, and indicator. ETC for automobiles are installed inside the vehicle where they are protected from the influences of wind, rain, and vibration. However, ETC for motorcycles are installed on the outside, where they are to be exposed directly to wind, rain, and vibration, so protective measures are crucial. JRC has released the new JRM-12 series in November, 2008. The JRM-12 is an all-in-one device with built-in antenna and indicator.

Tetsuji Sato
Toshiko Kawaida
Hiroshi Hatanaka
Haruki Kinoshita

- Special Issues 1 : Quality Assurance -

JRC's solution providing operations provide disaster prevention information solutions for federal and local governments and public benefit corporations responsible for social infrastructure. This paper introduces quality assurance activities that the department is undertaking for dam gate control systems, from the design stage to after-sales services, as an example of JRC's products for disaster prevention.

Hiroyasu Torikai
Hideo Ohta
Michiharu Maruyama
Yuko Kuramoto

- Special Issues 1 : Quality Assurance -

This paper gives an overview of the JRC marine product quality assurance activities that the Quality Assurance Department /Marine Electronics is in charge of, and introduces its activities to improve the quality of new products that have been released during 2008. Marine electronic equipments are grouped into radio communications, navigation assistance, and fishing assistance equipments. To ensure safe navigation and prevent injuries, all of these types of equipment need to have the high quality and reliability which can withstand harsh environments.

Yutaka Konishi
Takeshi Ishidera
Hiroaki Minami

- Special Issues 2 : Manufacturing -

To produce communication equipment that is durable, reliable, and safe in harsh environments, JRC engages in integrated manufacturing centered around its Mitaka plant. This paper uses one of JRC's representative products, the JMA-9100 high-seas radar, as an example to explain how the manufacturing processes at the PCB, FA, Machining, and Equipment factories all within the Mitaka plant are designed to ensure quality.

Akihiko Kikuchi
Takemi Sakoda
Masayuki Akamatsu
Katsushi Sawairi

- Special Issues 2 : Manufacturing -

While the traffic between Cellular Base Transceiver Station and Telephone Exchange has been through the optical fibre as the standard transmission method, for the place where to deploy the optical fibre is difficult such as the river side, the road crossing, the environmental protection region and the island, Microwave Transmission is being used as the alternative but the ultimate solution.

JRC have developed the State-of-Art High Speed Transmitting Radio at 11/15/18/22GHz for the backhaul and these equipment are provided to Mobile Phone Operator and these have been the part of the infrastructure successfully.

This document is to describe the manufacturing technology and production engineering of the equipment.

Noboru Kamata
Kenji Tomobe
Shigeru Ebihara
Takeo Iida

- Special Issues 2 : Manufacturing -

JRC has a variety of machine tools for sheet metal processing and machining so that it can carry out an integrated manufacturing process, from machining to finishing. To increase customer satisfaction through improved QCD (Quality, Cost, and Delivery) , JRC is constantly striving to improve productivity by looking for the optimum manufacturing methods and processes. This paper outlines the unique welding technology and sheet metal processing, and machining technology to ensure high-quality welding that JRC uses in production of infrastructure facilities.

Masahito Aoki
Mikio Ookuma
Kazuhiro Tanaka

Kenji Nambu
Masahumi Yoda

- Special Issues 2 : Manufacturing -

JRC develops, designs, produces, and sells SAW filters for use as key devices in radio communication equipment. Almost all SAW filters are custom-made, and we realize products meeting this variety of customer needs quickly by having the manufacturing department participate in the development and design stage and works on the manufacturing process as the product is being designed. In the typical manufacturing process of commercial narrow-band SAW filters there is large manufacturing variation leading to decreased yields, but now, new center frequency trimming technology of filter elements during manufacturing has made it possible to increase yields and achieve steady production. This paper will provide an outline of this frequency trimming technology.

Hiroyuki Arai
Takayuki Inaoka

- Special Issues 2 : Manufacturing -

JRC produces approximately 10,000 square meters of Printed Circuit Board a year, mostly for use in JRC products. To improve the quality of this production, JRC uses a number of analysis devices and tools. However, recent miniaturization of Printed Circuit Boards has made adequate analysis difficult, and the use of scanning electron microscope (SEM) , which have high magnification and high focal depth, has become necessary.

This paper explains how SEM are utilized in Printed Circuit Board analysis.

Akira Koiwa
Takashi Suzuki
Akihiko Kikuchi

- Special Issues 2 : Manufacturing -

In recent years, the increasing functionality and density of semiconductor devices has led to a steady increase in the amount of heat that the devices generate. Because of this, technology that efficiently dissipates the heat generated by each individual part is becoming indispensable.

Conventionally, devices are attached directly to heat sinks, which dissipate excess heat. However, creating a heat dissipation structure inside of the Printed Circuit Board increases heat dissipation, reduces manufacturing costs, and stabilizes performance. This paper explains the methods and technology used to create this internal heat dissipation structure.

Takeshi Mitsushima
Takashi Suzuki
Takashi Itagaki
Akihiko Kikuchi

- Special Issues 2 : Manufacturing -

JRC entered into the car electronics market in 1990, and has constructed a number of systems by focusing on the customer's needs while improving QCD (Quality, Cost, and Delivery) . To develop factories that increase customer satisfaction, JRC has (1) removed obstacles to production so that the stringent just-in-time demands of customers can be satisfied, (2) promoted factory improvement activities by cooperation among factory workers, and (3) strived to share necessary information and to quickly discover and prevent impediments.

This document introduces some of the unique visualization systems that JRC has developed in its factories.

Mitsuharu Miyata
Tetsuya Isomoto
Takemi Sakoda
Akihiko Kikuchi

- Special Issues 2 : Manufacturing -

To increase customer satisfaction in the ITS device market, where quality and price competition is fierce, JRC has taken measures to reduce prices while maintaining high quality and reliability. JRC has continuously strived to optimize and streamline production methods and to improve productivity.

This document explains the tray cycling production method developed by JRC that uses 15-segment PCBs and specialized trays.

Mitsuharu Miyata
Tetsuya Isomoto
Takemi Sakoda
Yoshihiko Uchida
Osamu Sugawara
Yusuke Ishiguro
Takashi Miyake

- Special Issues 2 : Manufacturing -

Recently, the manufacture of equipment installed on ships has been increasing each year. To rapidly meet this need, it is an urgent task to establish effective production methods at manufacturing sites rethinking how things should be made, which allow quick provision of products.

This is a report on unit-by-unit modes of production of marine equipment, and on development of automatic testing devices.

Hitoshi Kumakura
Naoki Yamaoka
Satoru Hamada

Shigeru Yoshida
Takashi Itagaki