Rohm Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Semiconductor Asia Pte. Ltd.

Hipep Laboratories

Atsushi Kitagawa

Takuya Ishii

Takeshi Tanaka

Hiroyuki Handa

Kunihiro Komiya

Takahiro Uehara

Kiyoshi Nokihara

Hiroshi Sawada

Tadata Hatanaka

Chun Kiong Leslie Khoo

Yoshihito Kawakami

Ulysses Ramos Lopez

Narciso Repollo Semira

Jiong Fu

Etsuji Sato

Hiroaki Asazu

Yuki Tominaga

Shun Nokihara

Disclosed are a novel compound having a higher angiogenic effect than that of a known peptide-based angiogenic agent, and an angiogenic agent including the novel compound. The compound is represented by the following formula [1]: Cyclic(Cys-O2Oc-SVV(F/Y)GLRG-Cys)-NH(wherein the number of oxyethylene units, represented by O2Oc, is within the range of 2 to 6), the following formula [II]: Cyclic(OOc-SVV(F/Y)GLRQ)-NH[II] (wherein the number of oxyethylene units, represented by O2Oc, is within the range of 2 to 6), or the following formula [III]: OOc-SVV(F/Y)GLR-NH[III] (wherein the number of oxyethylene units, represented by O2Oc, is within the range of 2 to 6).

Compound and angiogenic agent comprising same

A switching circuit includes: a drive power supply; a first transistor and a second transistor; a drive signal source; and a drive circuit. Each of the first transistor and the second transistor includes: a drain electrode and a source electrode in which a main current flows when a corresponding one of the first transistor and the second transistor is ON; a first source terminal for passing the main current; and a second source terminal. Here, the first source terminal is connected to the source electrode at an impedance lower than an impedance of the second source terminal.

Switching circuit

A DC-DC converter module includes a module substrate on which switching transistors and a controller IC chip are mounted, stud terminals mounted on a surface of the module substrate, and an inductor attached to the stud terminals such that the inductor faces the module substrate. In a plan view, the switching transistors are arranged within an area where the inductor overlaps the module substrate, whereas at least a portion of the controller IC chip is arranged outside the area.

DC-DC converter with a switching transistor arranged in an area where an inductor overlaps a substrate

A semiconductor device has pluralities of grid array terminals forming a grid array structure, e.g. a BGA structure, in which the output end of a built-in switch circuit is connected to multiple terminals of the grid array structure, thereby reducing the current that flows through each of the multiple terminals below a permissible level and minimizing the heat due to contact resistances of the multiple terminals in contact with the IC socket of the semiconductor device. Each pair of nearest neighbors of the multiple terminals is interposed by at least one further array terminal. The multiple terminals are all located at the outermost peripheral terminal positions of the grid array structure. Thus, the heat generated in the respective multiple terminals connected to the switch circuit is reduced, thereby minimizing the possibility of hazardous melting of the terminals.

Semiconductor device and power supply unit utilizing the same

LED drivers specially directed to LED matrix driver's ghost image prevention is disclosed. The LED driver receives an external input and decodes the input to produce a time multiplex timing on turning on an LED array. The LED driver inserts a dead time to the outputs and during this time the ghost image prevention circuit discharges the output stray capacitances to a predetermined level.

LED matrix driver ghost image prevention apparatus and method

Multiple LED terminals are provided to multiple LEDs, respectively. Each of these LED terminals is connected to the anode of the corresponding LED. A booster circuit boosts an input voltage. Multiple constant current sources are provided to the multiple LEDs, respectively. One terminal of each of the constant current sources is connected to the corresponding one of the LEDs via the corresponding one of the LED terminals. Multiple switches are provided to the multiple constant current sources, respectively, each of which selectively outputs a voltage selected from the input voltage and the output voltage of the booster circuit to the corresponding constant current source. A control circuit monitors each of the voltages at the multiple LED terminals, and controls the connection state of each of the switches based upon the corresponding voltage.

Driving circuit for light emitting elements

A direct-current stabilized power supply apparatus according to the present invention includes offsetting means that keeps a slope voltage (Vslp) shifted from the ground potential to a higher potential by a predetermined offset voltage &#x394;V so that the lower limit level of the slope voltage (Vslp) is higher than that of an error voltage (Verr). With this configuration, it is possible to provide a direct-current stabilized power supply apparatus that can appropriately control a duty ratio without causing oscillation or the like in the overall system, and also to provide an electrical device incorporating such a power supply apparatus.

PWM power supply apparatus having a controlled duty ratio without causing overall system oscillation

A soft start circuit includes a constant current source for generating a constant current, a first current mirror circuit for generating from the constant current a first mirror current, a second current mirror circuit for generating from the constant current a second mirror current smaller than the first mirror current, and a capacitor into which a difference between the first mirror current and the second mirror current is introduced, wherein a divided voltage of a charging voltage thereof is output as a soft start voltage. The soft start circuit provides a gradual soft start voltage.

Soft start circuit, power supply unit and electric equipment

A semiconductor integrated circuit is electrically connected to first to fourth capacitors and includes first to eleventh switches. A tenth switch has a first terminal electrically connected to a second terminal of the second capacitor, and a second terminal electrically connected to a first terminal of the third capacitor. An eleventh switch has a first terminal electrically connected to a second terminal of the first capacitor, and a second terminal electrically connected to the first terminal of the third capacitor. A second terminal of the third capacitor is connected to a node at a fixed potential.

Growing community of inventors

Kyoto, Japan

Atsushi Kitagawa