Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Renesas Electronics Corporation

Hitachi Zosen Corporation

Other

Hitachi Metals, Ltd.

Fujitsu Corporation

The University of Tokyo

Matsushita Electrical Industrial Co., Ltd.

Proterial, Ltd.

Suguru Fujita

Kazuaki Takahashi

Masahiro Mimura

Ryosuke Shiozaki

Maki Nakamura

Makoto Hasegawa

Morikazu Sagawa

Yoshinori Kunieda

Yuichi Kashino

Noriyuki Ueki

Kenichi Maeda

Shigeru Kobayashi

Kentaro Watanabe

Mitsuo Makimoto

Junji Sato

Ushio Sangawa

Takashi Fukagawa

Michiaki Matsuo

Naoki Adachi

Hiroyuki Uno

Ken-ichi Sawamura

Hiroshi Chano

Lei Huang

Takenori Sakamoto

Taisuke Matsumoto

Hiroshi Doi

Taiji Akizuki

Zhan Yu

Ping Luo

Hisayuki Imamura

Masanobu Aizawa

Yoshinobu Takaki

Hideki Aoyagi

Yew Soo Eng

Yutaka Murakami

Masayuki Orihashi

Akihiko Matsuoka

Kaoru Inoue

Shinji Hara

Shinkichi Ikeda

Daisuke Oshida

Hiroyuki Sakai

Yorito Ota

Junichi Watanabe

Masashi Kobayashi

Hirokazu Anai

Hiroshi Ogura

Tomotake Sasaki

Hitoshi Yanami

Hidenao Iwane

Yasuhiro Sagesaka

Haruyoshi Endo

Shinichiro Ueno

Junji Kaneko

Masaharu Furutera

Youichirou Kaga

Masashi Okada

Shiro Inoue

Shigeyuki Hamayoshi

Tetsuro Furukawa

Koichi Mizuno

Hitoshi Asano

Yoshihiro Asari

Kazuya Toki

Katsuo Iwata

Takeshi Yano

Yukio Hiranaka

Kentaro Shinoya

Hiroyuki Teshima

Masakatsu Yokota

Hisashi Onishi

Mitsunobu Matsuda

Takashi Tono

Noboru Tsubakihara

Nobuharu Yoshioka

Kohei Sugimoto

Mai Tani

Satoshi Hasako

A collision avoidance system includes a periphery monitoring system which detects vehicles in proximity to a subject vehicle by use of a sensor, an approaching vehicle notifying system which communicates with another vehicle in proximity to the subject vehicle in vehicle-to-vehicle communication, and a detected vehicle comparison/determination system which is connected to the periphery monitoring system and the approaching vehicle notifying system, determines common vehicles detected by both the periphery monitoring system and the approaching vehicle notifying system, and controls the periphery monitoring system and the approaching vehicle notifying system.

Collision avoidance system and vehicle equipped with it

A semiconductor device includes a transmission control unit which performs transmission processing, an area determination unit which determines whether an own vehicle is located in an intersection area, and an operation mode determination unit which determines either a control mode or a terminal mode as an operation mode of a radio terminal device based on an identification information for identifying a source of a received communication frame, and a determination result by the area determination unit. When the operation mode is determined to be the control mode, the transmission control unit outputs, as transmission data, a communication frame including generated control information. When the operation mode is determined to be the terminal mode, the transmission control unit outputs transmission data in synchronization with the received communication frame.

Semiconductor device, radio terminal device, and communication method of radio terminal device

A semiconductor device includes a communication unit which receives a frame at a first transmission period, demodulates control information from a received frame, modulates transmission data, and broadcasts a modulated transmission data at a second transmission period as a radio frequency packet signal, a period determination unit which determines the second transmission period based on vehicle information, and a transmission and reception control unit which generates a transmission timing trigger signal for determining a transmission timing of the transmission data based on the control information and the second transmission period, and outputs the transmission data to the communication unit in synchronization with the transmission timing trigger signal. The second transmission period is equal to or longer than the first transmission period.

Semiconductor device, radio terminal device, radio communication system and communication method of radio terminal device

A roadside radio device includes a first radio unit which receives a radio data packet from an in-vehicle radio device, and a first application unit which receives application data included in the radio data packet. A first application unit includes a vehicle class information comparison unit which compares vehicle identification information with communication type information. When the vehicle class information comparison unit determines that the vehicle identification information and the communication type information match, the first application unit processes the application data received from the first radio unit. When the vehicle class information comparison unit determines that the vehicle identification information and the communication type information do not match, the first application unit treats, as invalid data, the application data received from the first radio unit.

Roadside radio device and radio communication system

A radio communication device includes an application execution unit which generates first transmission data including first application identification information, a communication unit which receives a message including first reception data including the first application identification information, and an occupancy rate determination unit including a transmission ID number counter which counts the number of first application identification information included in the first transmission data and which outputs a count result as a first transmission ID count value, a reception ID number counter which counts the number of first application identification information included in the first reception data and which outputs a count result as a first reception ID count value, and a comparison unit which compares the first transmission ID count value with the first reception ID count value to determine the number of transmission data and the number of reception data have a predetermined ratio.

Occupancy-based adjustment of communication based on ID count values

A roadside radio device includes a first radio unit which receives a radio data packet from an in-vehicle radio device, and a first application unit which processes application data. The first radio unit includes a radio data processing unit including a correlation processing unit which compares a data string of vehicle identification information with a data string of communication type information to determine whether there is a correlation in the radio data packet. When the correlation processing unit determines that there is the correlation in the radio data packet, the first radio unit outputs the application data included in the radio data packet to the first application unit. When the correlation processing unit determines that there is no correlation in the radio data packet, the first radio unit treats the radio data packet as invalid data.

To provide a communication device that can suppress radio wave interference in communication using a plurality of frequency signals in a simply method, a communication device includes a first communication unit that communicates with a first external device by using a first frequency signal, a second communication unit that communicates with a second external device by using a second frequency signal, and a control unit that controls, when one of the first and second communication units transmits data to a corresponding one of the first and second external devices, the other of the first and second communication units not to receive data.

Communication device

Provided is a large-sized silicon nitride sintered substrate and a method for producing the same. The silicon nitride sintered substrate has a main surfaceof a shape larger than a square having a side of a length of 120 mm. A ratio dc/de of the density dc of the central area and the density de of the end area of the main surfaceis 0.98 or higher. The void fraction vc of the central area of the main surfaceis 1.80% or lower, and the void fraction ve of the end area is 1.00% or lower. It is preferred that the density dc of the central area is 3.120 g/cmor higher, the density de of the end area is 3.160 g/cmor higher, and a ratio ve/vc of the void fraction vc of the central area and the void fraction ve of the end area is 0.50 or higher.

Silicon nitride sintered substrate, silicon nitride sintered substrate sheet, circuit substrate, and production method for silicon nitride sintered substrate

To discriminate between a circuit where a failure does not occur and a circuit where a failure might occur, a wireless communication device has tested units which belong to a transmission side circuit, tested units which belong to a reception side circuit, a test signal generation unit for generating a test signal, a test signal reception unit for receiving a test signal, a test signal determination unit for determining whether or not the test signal received by the test signal reception unit is normal, and test signal transfer units for transferring a test signal from the transmission side circuit to the reception side circuit.

Wireless communication device and determination method

The carbon dioxide membrane separation system in a coal gasification process contains introduction of a mixed gas of hydrogen (H) and carbon dioxide (CO) in a high temperature and high pressure condition generated through water gas shift reaction from a water gas shift reaction furnace, while maintaining the temperature and pressure condition, to a zeolite membrane module containing a zeolite membrane for removing carbon dioxide, thereby removing carbon dioxide and generating a fuel gas rich in hydrogen. The fuel gas rich in hydrogen in a high temperature and high pressure condition discharged from the zeolite membrane module is fed to a gas turbine of the power generation facility while maintaining the temperature and pressure condition.

Carbon dioxide membrane separation system in coal gasification process, and integrated coal gasification combined cycle power generation facility using same

To provide a brazing material for maintaining bonding strength between ceramic substrate and metal plate at a conventionally attainable level, while addition amount of In is reduced, and a brazing material paste using the same. A mixture powder provided by mixing alloy powder composed of Ag, In, and Cu, Ag powder, and active metal hydride powder, the mixture powder containing active metal hydride powder with a 10-to-25-&#x3bc;m equivalent circle average particle diameter by 0.5 to 5.0 mass %, the equivalent circle average particle diameters for the alloy powder, Ag powder, and active metal hydride powder having a relationship: alloy powder&#x2267;active metal hydride powder&#x3e;Ag powder, and the powder mixture having a particle size distribution of d10 of 3 to 10 &#x3bc;m, d50 of 10 to 35 &#x3bc;m, and d90 of 30 to 50 &#x3bc;m, and in the frequency distribution, a peak of the distribution existing between d50 and d90.

Brazing material, brazing material paste, ceramic circuit substrate, ceramic master circuit substrate, and power semiconductor module

An antenna device includes a dielectric substrate, a conductor plate that is placed on one surface of the dielectric substrate, that includes a first slot element, a second slot element, and one or more slits, and a ground conductor that is placed at a specified distance from the conductor plate in a first direction. A center of the first slot element is placed between a center of the second slot element and a center of each of slits, in a second direction.

Antenna device

A wireless device includes an antenna that has a planar shape and radiates a radio signal toward another wireless device, and a chassis housing the antenna and having an outer peripheral portion placed to face the antenna. Multiple distances between a surface of the outer peripheral portion and the antenna are non-uniform.

Wireless device and wireless system

An antenna device includes a wireless module, a module substrate, and a metal plate. The wireless module includes an antenna element that operates in a millimeter wave band. The module substrate is a multi-layer wiring module substrate on which the wireless module is mounted. The metal plate has a length of 1/10 or more of an operation wavelength and is positioned in a vertical direction relative to a plane surface of the antenna element and in a predetermined distance from the antenna element.

In a carbon dioxide recovery method including a carbon dioxide absorption step of bringing a gas to be treated containing carbon dioxide into contact with a carbon dioxide absorbing liquid, thereby removing carbon dioxide from the gas to be treated, and a regeneration step of removing carbon dioxide from a rich solution that has absorbed carbon dioxide in the carbon dioxide absorption step, thereby achieving regeneration, the rich solution that has absorbed carbon dioxide is guided in liquid form to a membrane separation apparatus () that is selectively permeable to carbon dioxide and equipped with a zeolite membrane for carbon dioxide separation, carbon dioxide is separated and removed by a pervaporation method, and the carbon dioxide absorbing liquid is thus regenerated.

Method for regenerating carbon dioxide absorbing liquid in carbon dioxide recovery method

Growing community of inventors

Tokyo, Japan

Suguru Fujita