Hitachi, Ltd.

Other

Masahiro Tsuchiya

Yuzo Kadomukai

Yoshio Okamoto

Makoto Yamakado

Motoyuki Abe

Tohru Ishikawa

Noriyuki Maekawa

Yoshiyuki Tanabe

Atsushi Sekine

Masaru Sugai

Hiroyuki Kida

Tosuke Hirata

Koichi Tomobe

Yuji Matsushita

Hideto Suzuki

A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit for applying force to the valve element in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system, which interacts with a primary oscillation system including the valve element and the force-applying member, is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system, whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very accurate fuel-injection control.

Fuel-injection valve

A memory is configured such that two operational modes, including a high-speed access mode in which current dissipation amount is large, but a high-speed access is possible, and a small current mode in which an access speed is lower than that in said high-speed access mode, but the current dissipation amount is small, are provided in the memory. The memory includes a control circuit for executing one of the two operational modes for the memory, in accordance with a mode designation signal sent from the outside of the memory.

Memory with plurality of blocks each accessed selectively with either one of two operational modes to reduce current dissipation using values of register bits set by an instruction signal

In a CMOS noise eliminating circuit, a plurality of PMOS transistors or NMOS transistors are connected in series so as to cause of switching speeds or switching timings of the PMOS transistors or the NMOS transistors, which are connected in series, to differ from each other, thereby improving the noise-resistant performance of a semiconductor integrated circuit.

CMOS circuit

Growing community of inventors

Tsuchiura, Japan

Masahiro Tsuchiya