HM

Hidekazu Matsumoto

HI Hitachi: 13 patents #3,142 of 28,497Top 15%
HC Hitachi Engineering Co.: 8 patents #10 of 572Top 2%
Overall (All Time): #391,205 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
5146569 System for storing restart address of microprogram, determining the validity, and using valid restart address to resume execution upon removal of suspension Shinichiro Yamaguchi, Tadaaki Bandoh, Hirokazu Hirayama, Morioka Takayuki, Soichi Takaya +3 more 1992-09-08
5003458 Suspended instruction restart processing system based on a checkpoint microprogram address Shinichiro Yamaguchi, Tadaaki Bandoh, Hirokazu Hirayama, Takayuki Morioka, Soichi Takaya +3 more 1991-03-26
4896258 Data processor provided with instructions which refer to both tagged and tagless data Shinichiro Yamaguchi, Tadaaki Bandoh, Hiroaki Nakanishi, Kenzi Hirose, Takao Kobayashi +1 more 1990-01-23
4839846 Apparatus for performing floating point arithmetic operations and rounding the result thereof Kenji Hirose, Tadaaki Bandoh, Shinichiro Yamaguchi, Hirokazu Hirayama, Hiroaki Nakanishi 1989-06-13
4811269 Bit slice multiplication circuit Kenji Hirose, Tadaaki Bandoh, Shinichiro Yamaguchi, Hirokazu Hirayama, Hiroaki Nakanishi 1989-03-07
4807113 Microprogrammed control data processing apparatus in which operand source and/or operand destination is determined independent of microprogram control Tadaaki Bandoh, Ryosei Hiraoka, Takayuki Morioka, Yoshihiro Miyazaki 1989-02-21
4644490 Floating point data adder Takao Kobayashi, Shigeo Abe, Tadaaki Bandoh, Masao Takatoo, Hideyuki Hara 1987-02-17
4530050 Central processing unit for executing instructions of variable length having end information for operand specifiers Yasushi Fukunaga, Tadaaki Bandoh, Kotaro Hirasawa, Jushi Ide, Takeshi Katoh +3 more 1985-07-16
4523272 Bus selection control in a data transmission apparatus for a multiprocessor system Yasushi Fukunaga, Tadaaki Bandoh, Ryosei Hiraoka, Jushi Ide, Tetsuya Kawakami 1985-06-11
4523276 Input/output control device with memory device for storing variable-length data and method of controlling thereof Hideo Maejima, Ikuro Masuda, Shyoichi Miyazawa 1985-06-11
4520441 Data processing system Tadaaki Bandoh, Yasushi Fukunaga, Ryosei Hiraoka, Jushi Ide, Tetsuya Kawakami 1985-05-28
4481573 Shared virtual address translation unit for a multiprocessor system Yasushi Fukunaga, Tadaaki Bandoh, Ryosei Hiraoka, Jushi Ide, Takeshi Kato +1 more 1984-11-06
4454578 Data processing unit with pipelined operands Tadaaki Bandoh, Hideo Maejima 1984-06-12