Sony Corporation

Hoya Corporation

Hiroshi Shirakawa

Kenichi Shinde

Takeshi Mitsuishi

Takashi Tomida

Hybrid films, such as those having good abrasion-resistance and defogging properties, antireflection films including it, optical products, and methods for restoring the defogging property of the hybrid films are disclosed. The hybrid films having a defogging property may be obtained through vapor deposition of an organic compound having a hydrophilic group and a reactive group along with silicon dioxide or with silicon dioxide and aluminum oxide. The antireflection film may be formed on a substrate having the hybrid film as the outermost layer opposite to the substrate. The optical product may comprise a plastic substrate and the antireflection film having the hybrid film. A method for restoring the defogging property of the hybrid film of the optical product may include washing the hybrid film.

Hybrid film, antireflection film comprising it, optical product, and method for restoring the defogging property of hybrid film

The present invention is directed to an optical element having an antireflection film formed on a plastic substrate, wherein the reflectance of the antireflection film is low while the transmittance thereof is high. The impact resistance, the adhesiveness, the heat resistance, the abrasion resistance and the alkali resistance of the antireflection film on the plastic substrate are superior. The optical element having an antireflection film has at least one layer of the antireflection film that is a hybrid layer made of an inorganic substance and an organic substance.

Optical element having antireflection film

Coating composition, process for producing optical element using the same, and optical element produced thereby

In order to reduce the charging time required for charging, there is provided a battery pack having a battery cell that supplies current to an electronic apparatus which is connected thereto or is charged by the supply of current from another power source, and a charge/discharge control section that controls the charging operation of the battery cell. The charge/discharge control section further includes a voltage sensing circuit that monitors the output voltage of an AC adapter, a protection circuit that senses the voltage between terminals of the battery cell and a control circuit that controls the charging operation. The battery pack is charged by using a charging apparatus having a charging adapter that has insertion slots for incorporating the battery pack and the AC adapter that generates the charge current.

Battery charging apparatus, battery pack and method for charging secondary battery

A radio receiver capable of receiving world wide shortwave broadcasting programs is constructed of a phase-locked loop circuit, a standard time generating circuit, a memory, a timer unit, and a controller. The phase-locked loop circuit includes a frequency dividing circuit and performs a frequency conversion of a received signal by changing a frequency dividing ratio of the frequency dividing circuit. The standard time generating circuit counts the Greenwich standard time. A shortwave broadcasting service area is subdivided into a plurality of service ares based upon time difference data corresponding to the Greenwich standard time produced from the standard time generating unit. The memory stores therein a plurality of frequency data receivable within an area of the plural set areas. The timer unit counts local time obtained by correcting the Greenwich standard time derived from the standard time generating unit based on the time difference data from the memory. The controller selectively reads the frequency data from the memory based on the time difference data used when the local time is set to the timer unit, and then set the frequency dividing ratio of the phase-locked loop circuit based on the read frequency data.

Radio receiver selecting broadcast frequencies based upon stored time

A double super-heterodyne receiver has a high-frequency input circuit that includes a high-frequency amplifying device, a low-pass filter and a high-pass filter used for obtaining bandpass characteristics for the receiving band. A switching device for changing the cut-off frequency of, at least, the low-pass filter is further provided for the high-frequency input circuit. The switching device is controlled to be on or off in response to the receiving frequency, thereby changing the passband of the high-frequency input circuit. Image disturbance characteristics can thus be improved.

Double super-heterodyne receiver with low-pass and high-pass filters

Radio receiving selecting broadcast frequencies based upon stored time

A synthesizer radio receiver having a tuner for tuning in reception frequencies, a storage memory for storing location data and time difference and frequency interval data associated with the location data, an input device for inputting control data, a controller for controlling the tuner in accordance with frequency interval data stored in the storage memory, and a display device for displaying time information.

Growing community of inventors

Tokyo, Japan

Hiroshi Shirakawa