Clarion Co

Nippon Kokan Kabushiki Kaisha

Nkk Corporation

Takao Miyazaki

Kazuo Sano

Yoshiro Yamada

Isamu Komine

Kimichika Yamada

Ryo Ando

Satoru Tazaki

Hideo Yamamoto

Circularly polarized light caused to be incident on a film surface is converted into three light beams by optical flats to obtain electrical signals corresponding to the intensities of the respective light beams. Two ellipsometric parameters .psi. and .DELTA. are claculated from these three electrical signals.

Film thickness-measuring apparatus

A linearly polarized light beam is applied to the surface of a film and is reflected therefrom. The beam is then split into three light beams by three or four optical flats. These light beams are applied to photoelectric conversion devices after passing through analyzers with fixed analyzing angles. The photoelectric conversion devices convert the beams into electric signals representing the intensities of these light beams. Two ellipsometric parameters .psi. and .DELTA. are calculated from these three electric signals.

Film thickness-measuring apparatus using linearly polarized light

When video signal recording on a single magnetic tape is to be interrupted and subsequently resumed, a pause button is operated and then released so as to roll back the tape, subsequently produce the playback mode for a time, and resume the recording mode when the tape is transported forward by the rolled-back length. The system uses three timers individually activated during the interruption of recording to control different circuits related to tape transportation so that resumption of recording is effected after an auto tracking (proper track tracing by the magnetic heads) is established.

Magnetic video signal recording and reproducing system

The TV system includes an audio tape recording apparatus, a videotape recording apparatus and a video camera device having a video camera and associated control circuits, so that the video camera device is controlled by signals reproduced by the audio tape recording apparatus or by the videotape recording apparatus and video signals from the well-controlled video camera device are recorded on a videotape by the videotape recording apparatus.

Automatic camera control system

An automatic tuner control system characterized in that the device comprises a detector for detecting a signal level in a radio receiver, a means for setting a reference signal level and a comparator means for doing comparison between the signal level and the reference signal level. Thus, the device is arranged to switch the received waves of the radio receiver in response to the result of the comparison in the comparator means and various conditions.

Tuner control system

The swirling burner comprises a vertical combustion chamber and an annular blast member located beneath the combustion chamber and provided with a central cylindrical space and a plurality of alternately superposed fuel gas passages and air passages. These passages are communicated with the cylindrical space through blow openings which are inclined in the same direction with respect to the radii of the cylindrical space. In a modification, the burner is further combined with straight blowing type burner for promoting the effect of the air-gas mixing.

Growing community of inventors

Tokyo, Japan

Takao Miyazaki