Hitachi Automotive Systems, Ltd.

Daicel Corporation

Renesas Electronics Corporation

National Institute of Advanced Industrial Science and Technology

Tohoku University

Kyushu Institute of Technology

Ming Liu

Masahiro Nishikawa

Kenichi Osada

Taizo Yamawaki

Tatsuo Nakagawa

Yasushi Sugiyama

Ryosuke Ishida

Hideyuki Sakamoto

Takuya Mayuzumi

Hiroshi Shinoda

Goichi Ono

Hirofumi Kurimoto

Tomoaki Mahiko

Yuto Makino

Akihiko Tsurui

Hiroki Yamashita

Teppei Hirotsu

Mitsuhiko Watanabe

Taisuke Ueta

Shinya Kajiyama

Atsushi Arata

Norihiro Kimoto

Koshi Adachi

Hisayoshi Ito

Takahiro Tei

Ryusuke Sahara

Maki Kishimoto

Yoshihiro Inamoto

Yue Yu

Eijiro Miyako

Shinji Nagamachi

Motoi Nakao

Hirotsuna Sato

The present invention is to provide a method for producing nanodiamonds doped with a Group 14 element, the method comprising: detonating by exploding an explosive composition containing at least one explosive and at least one Group 14 element compound in a sealed container to obtain nanodiamonds doped with at least one Group 14 element selected from the group consisting of Si, Ge, Sn, and Pb, and removing the Group 14 element and/or oxide thereof by subjecting the nanodiamonds doped with a Group 14 element to an alkali treatment.

Method for producing nanodiamonds doped with group 14 element, and method for purifying same

The present invention is to provide a heteroatom-doped nanodiamond, the heteroatom-doped nanodiamond being doped with at least one heteroatom, the heteroatom-doped nanodiamond satisfying criteria (i) and/or (ii) below: (i) a BET specific surface area being from 20 to 900 m/g, and (ii) an average size of primary particles being from 2 to 70 nm.

Heteroatom-doped nanodiamond

The present invention provides a fluorescent diamond containing an MV center emitting fluorescence at a concentration of 1×10/cmor higher, where M represents a metal or metalloid, and V represents a vacancy.

Fluorescent diamond and method for producing same

The present invention provides a nanocluster in which a carbon nanomaterial modified with a higher alkyl group or a higher alkenyl group is self-assembled.

Modified carbon nanomaterial, nanocluster, substance delivery carrier and pharmaceutical composition

A method of producing a fluorescent nanodiamond exhibiting a zero phonon line (ZPL) for NVand/or NVon its fluorescence emission wavelength spectrum. The method includes a detonation step of exploding at least one type of explosive in an airtight container to obtain a nanodiamond raw material, a first annealing step of annealing, at a temperature from 1000° C. to 1600° C., the nanodiamond raw material or a nanodiamond which is obtained by removing sp2 carbon through strong acid treatment, ozone treatment, or gas-phase oxidation of the nanodiamond raw material, a vacancy forming step of creating vacancies on the nanodiamond by irradiating the nanodiamond with an ion beam or an electron beam after the first annealing step, and a second annealing step of annealing, at a temperature from 600° C. to 900° C., the nanodiamond containing vacancies to form Nitrogen-Vacancy (NV) centers.

Fluorescent nanodiamond and method for producing same

A transient increase/decrease of power supplied to a reconfiguration circuit to be a logic circuit whose circuit configuration can be changed is reduced. An autonomous traveling control ECU has a reconfiguration circuit, a function control unit, a power supply circuit, and a power supply control unit. The reconfiguration circuit is a reconfigurable logic circuit. The function control unit determines an operation mode of the reconfiguration circuit on the basis of a mode determination signal and controls a reconfiguration of the reconfiguration circuit on the basis of a determination result. The power supply circuit supplies power to the reconfiguration circuit. The power supply control unit controls the power supply circuit. The power supply control unitcontrols a load current generated by the power supply circuit before a load variation of the reconfiguration circuit, on the basis of power supply control information to be information for controlling the power supply circuit.

Electronic control device, in-vehicle system, and power supply control method

A power supply apparatus that can realize ripple reduction, and an electronic control unit including the power supply apparatus are provided. In view of this, a PWM controller generates a PWM signal, and a PFM controller generates a PFM signal having a phase independent of the PWM signal. A level-fixed period generating circuit sets a level-fixed period having a start timing at a selection timing set to an edge of the PFM signal. A mode selecting circuit selects, at the selection timing and as a switching control signal, the PWM signal instead of the PFM signal, and controls a logic level of the switching control signal in the level-fixed period starting at the selection timing, such that the logic level becomes a fixed logic level.

Power supply apparatus and electronic control unit

The present invention reduces conducted noise of an input current in a power supply device having a plurality of channels at low cost. In a power supply circuit () possessed by an autonomous running control ECU, switching circuitsrespectively generate, on the basis of control signals C, power supplies supplied to a plurality of logic circuits. A transition management unitcontrols the switching circuits. A clock generation unitgenerates a plurality of clock signals. The transition management unithas a control signal generation unit and a plurality of delay units. The control signal generation unit generates intermediate control signals from the clock signals generated by the clock generation unit. The delay units delay the intermediate control signals on the basis of command signals and output the delayed intermediate control signals as the control signals C. The clock signals generated by the clock generation unit include at least one clock signal having a different frequency.

Electronic control device, in-vehicle system, and power supply device

A conventional power supply device has a problem in miniaturization. A power supply device generates a prediction value of an error signal from first and second error signals, and controls an output voltage so that the prediction value lies between first and second threshold values. The first error signal is obtained by converting an error voltage based on the difference between the output voltage and a reference voltage at a first timing. The second error signal is obtained by converting an error voltage based on the difference between the output voltage and the reference voltage at a second timing.

Semiconductor integrated circuit device and power supply device

A water lubricant composition () of the present invention contains water () as a lubricating base material and ND particles (), which are hydrogen-reduced nanodiamond particles. The content of the water () in the water lubricant composition () is, for example, 90% by mass or more. The content of the ND particles () in the water lubricant composition () is, for example, 0.1% by mass or less. The water lubricant composition () is suitable for achieving low friction in water lubrication. A water lubricating system of the present invention includes the water lubricant composition () which is being used for the lubrication of a SiC member and/or a SiOmember.

Water lubricant composition and water lubricating system

A power line communication apparatus includes a drive block including an actuator control circuit and a drive circuit and a communication block. The actuator control circuit generates a control pulse for controlling an actuator, and controls a transition timing of the control pulse during an operation period set within a communication cycle by a communication clock. The drive circuit controls a driving current of the actuator supplied from a DC power source through a power line based on the control pulse in which the transition timing is controlled. The communication block generates the communication clock, and modulates a current flowing through the power line in response to data to be transmitted during a signal transmission period different from the operation period, set within the communication cycle.

Power line communication apparatus and electronic control apparatus including power line communication apparatus

To achieve, in a load drive device including an H-bridge circuit, miniaturization of a capacitor or/and the constituent elements of the H-bridge circuit (e.g., reduction in volume) with circuit elements, for example, switching elements included in the H-bridge circuit, being inhibited from breaking down or destroying even in a case where a load is overloaded. The invention is disclosed in which, as a solution to the achievement, first and second modes are provided as a switching mode for the switching elementsandand switching is appropriately performed between the first and second modes.

Load drive device

A step-up/down power supply, in which a circuit area is small, includes a step-down unit that generates an output voltage lower than an input voltage by turning on or off a step-down switch in which the input voltage of the step-up/down power supply is applied, and a step-up unit that generates an output voltage higher than the input voltage by turning on or off a step-up switch in which a ground is applied. A step-down gate voltage control circuit controls a gate voltage of the step-down switch and includes a gate voltage generating circuit that generates a first voltage and a second voltage for turning on the step-down switch. A gate voltage switching circuit switches between the first voltage and the second voltage, and the gate voltage generating circuit includes a first voltage source that generates the first voltage and a second voltage source that generates the second voltage.

Step-up/down power supply and power supply circuit

Semiconductor integrated circuit device

Downsizing of an inductor is achieved while reducing radiation noise of an inductor current. A boosting power supply unit is, for example, provided in an ECU mounted in a vehicle or the like. The boosting power supply unit has a boosting coil, a switching element and a current control unit. The current control unitcontrols the switching elementto turn on and off by using a clock signal CKwith a higher frequency than a pulse signal SPL in a clamping period when the inductor current flowing in the boosting coil is clamped at a preset peak setting current, and controls the switching element to turn on and off by using the pulse signal SPL in periods other than the clamping period. By controlling the switching element to turn on and off in this manner, the inductor current flowing in the boosting coil is controlled.

Growing community of inventors

Tokyo, Japan

Ming Liu