Victor Company of Japan, Limited

Kawasaki Steel Corporation

Shinji Hirano

Akira Hirota

Takuya Tsushima

Tsunehisa Ohira

Hiroyuki Kitamura

Koji Sadakane

There is provided a spin coating process of forming a coating film through spin coating of a solution on a substrate, wherein periphery portions of the coating film are removed. The film forming method comprises the steps of: (a) initiating dropwise dispensing of a first solvent having a relatively low affinity for the coating film at a position slightly insider a periphery of the substrate covered by the coating film; (b) initiating dropwise dispensing of a second solvent having a relatively high affinity for the coating film at a position closer to the periphery of the substrate as compared to the position of the dropwise dispensing of the first solvent, where the dropwise dispensing of the second solvent is initiated simultaneous to or after the initiation of the dropwise dispensing of the first solvent; (c) stopping the dropwise dispensing of the first solvent; and (d) stopping the dropwise dispensing of the second solvent after stopping the dropwise dispensing of the first solvent.

Film forming methods

A magnetic recording and/or reproducing apparatus comprises a guide drum having a plurality of video heads for recording and/or reproducing an information signal onto and/or from a magnetic tape which is spirally wrapped around the guide drum, and first through fourth guide members. The first guide member is arranged on a side of the guide drum where the tape begins to make contact with a peripheral surface of the guide drum in a traveling direction of the tape, and guides the tape which is perpendicular to a horizontal reference plane and which has a center line parallel to this reference plane toward the guide drum. The second guide member is arranged on a side of the guide drum where the tape terminates the contact with the guide drum, and guides the tape which separates from the guide drum. The first and second guide members are located at positions such that the tape is wrapped around the guide drum over an angular range which exceeds 180.degree.. The third guide member is arranged downstream of the second guide member, and guides the tape which has been guided by the second guide member so as to change the traveling direction of the tape. The fourth guide member is arranged downstream of the third guide member, and guides the tape so that the tape becomes perpendicular to the reference plane and the center line of the tape becomes parallel to the reference plane.

Helical scan type magnetic recording and/or reproducing apparatus

An automatic tape loading type recording and/or reproducing apparatus comprises a guide drum, a first loading mechanism for drawing a tape out of a loaded cassette and for guiding the tape by moving from an unloading position to a loading completion position on an entrance side of the guide drum in a tape moving direction, without changing a height position thereof which corresponds to a height position of a tape moving plane in which the tape moves within the cassette, a second loading mechanism for drawing the tape out of the cassette and for guiding the tape by moving from an unloading position to a loading completion position which is on an exit side of the guide drum in the tape moving direction and is in a plane lower than the tape moving plane, so that a height position of the tape on a downstream side of the second loading mechanism is restored to an original height position, and a tape guiding mechanism arranged on a downstream side of the second tape loading mechanism, for making contact with and guiding the tape having the restored height position by changing a moving direction of the tape to a direction along the tape moving plane. The tape is wrapped around the peripheral surface of the guide drum between the first and second loading mechanisms, over an angular range which greatly exceeds 180.degree..

Helical scan type recording and/or reproducing apparatus

A noise reducing system for a video signal comprises a vertical pre-emphasis circuit supplied with an input video signal which is to be transmitted, for supplying an output signal to a transmission system, and a vertical de-emphasis circuit supplied with the video signal which has been pre-emphasized in the vertical pre-emphasis circuit and has been transmitted through the transmission system. The vertical pre-emphasis circuit has a characteristic for relatively emphasizing the level of high-frequency components of the input video signal having spatial frequencies in a vertical direction of a picture, compared to low-frequency components of the input video signal. On the other hand, the vertical de-emphasis circuit has a characteristic for relatively attenuating the level of the high-frequency components of the pre-emphasized video signal having spatial frequencies in the vertical direction of the picture, compared to the low-frequency components of the pre-emphasized video signal. The characteristics of the vertical pre-emphasis circuit and the vertical de-emphasis circuit cooperate so as to reduce noise having high spatial frequencies in the vertical direction of the picture.

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Tokyo, Japan

Shinji Hirano