A selectively adjustable means for positioning a shift fork on a shift rail. The adjustable means correlates the shift fork with a shift lever position and assures full engagement of the clutch teeth when the lever is shifted. Positive detent mechanism will assure the transmission will not jump out of gear while coasting or driving under load.

A half tone type phase shift mask as well as a phase shift mask blank for the mask is formed with a thin film light translucent portion made of essentially, nitrogen, metal, and silicon. The containing rate of each element and ratio in the thin film is specified in a certain range to improve film characteristics, such as acid resistance, photo resistance, conductivity, refractive index rate (film thickness), light transmission rate, etching selectivity, etc. of the light translucent portion. The...

A bicycle shift control apparatus comprises a threshold value setting unit that sets a threshold value of a running condition for shifting a bicycle transmission, a decision unit that decides if a current running condition value passes the threshold value, and a tentative shift unit that sets a tentative shift of the bicycle transmission when the decision unit decides that the current running condition value passes the threshold value. A canceling unit cancels the tentative shift if the decision...

A half tone type phase shift mask as well as a phase shift mask blank for the mask is formed with a thin film light translucent portion made of essentially, nitrogen, metal, and silicon. The containing rate of each element and ratio in the thin film is specified in a certain range to improve film characteristics, such as acid resistance, photo resistance, conductivity, refractive index rate (film thickness), light transmission rate, etching selectivity, etc. of the light translucent portion. The...

A shift control system rotates an actuator to cause a wall of a detent plate to contact a roller of a detent spring, and detects the position of contact so as to detect the position of the wall of the detent plate. This wall position is set as a reference position of the actuator. Accordingly, the rotation of the actuator can appropriately be controlled even if an encoder which can only detect relative positional information is employed, and thus the shift range can appropriately be switched.

A shift control system rotates an actuator to cause a wall of a detent plate to contact a roller of a detent spring, and detects the position of contact so as to detect the position of the wall of the detent plate. This wall position is set as a reference position of the actuator. Accordingly, the rotation of the actuator can appropriately be controlled even if an encoder which can only detect relative positional information is employed, and thus the shift range can appropriately be switched.

A shift control method for a pneumatic shift system including the steps of determining if a gearshift lever is positioned in a neutral range after receiving gearshift lever position signals, controlling a first magnetic chamber of a magnetic valve assembly from ON to OFF for a predetermined time interval if the gearshift lever is in the neutral range, and controlling both the first magnetic chamber and a second magnetic chamber of the magnetic valve assembly to ON if the predetermined time inter...

There is disclosed a halftone phase shift mask blank, in which, for example, a semitransparent film (halftone phase shifter film) 2 contains silicon, palladium, and at least one selected from nitrogen, oxygen and hydrogen, and silicon and palladium contained in the semitransparent film are in a relation represented by the following equation:

The method of manufacturing a halftone phase shift mask blank enables the accurate and easy control over the composition of an MSi semitransparent film that makes it easy to obtain an MSi semitransparent film having a desired specific component, the formation of film with ease at a good reproducibility and the reduction of defects in the layer. A novel process for the production of a halftone type phase shift mask blank adapted for the preparation of a phase shift mask having a semitransparent f...

A shift control system rotates an actuator to allow a wall of a detent plate and a roller of a detent spring to contact each other and then detects the position of contact so as to detect the position of the wall of the detent plate. After the wall position is determined, the actuator is driven in the direction opposite to the wall until the actuator reaches a position located before the wall position and distant therefrom by a predetermined amount, in order to cancel flexure or extension of the...