P

Inventor

IMAI HITOSHI

JP65 patents
⚠️ This page may combine multiple inventors who share the name “IMAI HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI ELECTRIC CORP

12 patents
US4862442AAug 29, 1989

Focus detecting apparatus utilizing reflecting surface having variable reflectivity or transmissivity

MITSUBISHI ELECTRIC CORP19 citations82
US5313441AMay 17, 1994

Optical recording and reproducing apparatus having a pickup head including a main prism with reflecting surfaces for splitting the reflected beam

MITSUBISHI ELECTRIC CORP15 citations74
US5111041AMay 5, 1992

Means for securing a photodetector to a base plate or the like

MITSUBISHI ELECTRIC CORP8 citations74
US5051975ASep 24, 1991

Optical recording and/or reproducing apparatus having a temperature adjusting device

MITSUBISHI ELECTRIC CORP10 citations74
US5016232AMay 14, 1991

Magneto-optic information-carrying medium including three magnetic layers

MITSUBISHI ELECTRIC CORP19 citations74
US4841507AJun 20, 1989

Optical head for an optical recording and reproducing apparatus

MITSUBISHI ELECTRIC CORP17 citations70
US5025430AJun 18, 1991

Magneto-optic recording and reproducing apparatus including a multiple layer recording medium having a premagnetized bias layer replacing an external bias magnetic

MITSUBISHI ELECTRIC CORP13 citations69
US5199012AMar 30, 1993

Apparatus for detecting positional deviation of a moving stage in a two-stage optical recording/producing apparatus

MITSUBISHI ELECTRIC CORP5 citations63
US4962479AOct 9, 1990

Optical data storage system with wavelength selective laminate

MITSUBISHI ELECTRIC CORP4 citations63
US4881204ANov 14, 1989

Optical reading or writing apparatus

MITSUBISHI ELECTRIC CORP5 citations63
US4868807ASep 19, 1989

Wavelength selective optical data storage system

MITSUBISHI ELECTRIC CORP2 citations63
US4861139AAug 29, 1989

Apparatus for positioning an optical element

MITSUBISHI ELECTRIC CORP2 citations61

GREE INC

11 patents

HONDA MOTOR CO LTD

6 patents

CANON KK

5 patents

SQUARE ENIX KK

4 patents

TOSHIBA KK

3 patents

SHARP KK

2 patents

IMAI HITOSHI

2 patents

CANON HANBAI KK

1 patent

SQUARE CO LTD

1 patent

(unassigned)

1 patent

RENESAS ELECTRONICS CORP

1 patent

UCHIKAWA HIROSHI

1 patent

Showing the top 50 of 65 patents by PatentIndex Score.