Inventor

KUMANO HIROSHI

22 patents

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

KUMANO HIROSHI

ROHM CO LTD

Wire bonding structure for a semiconductor device

Semiconductor protection circuit

Semiconductor device having zener diodes with temperature stability between base and collector regions

Semiconductor device

Semiconductor device

Power module and motor drive circuit

Mask and method for producing thereof and a semiconductor device using the same

Power module and motor drive circuit

Semiconductor device

Semiconductor device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Method of producing sheet-formed bactericidal article

Novel manganese dioxide

Method for fabrication of manganese oxide solid electrolyte capacitor

Lead alloy for lead-acid batteries and process for producing the alloy

Method of making reaction bed material for artificial mineral water production

Silver oxide primary cell

Divalent silver oxide for use in primary cell and manufacturing method thereof

Divalent silver oxide for use in primary cell and manufacturing method thereof

MURATA MANUFACTURING CO

Vibration substrate having a pair of holding portions and a beam portion connecting the holding portions, vibrator, and vibrator unit

Quartz vibration element and manufacturing method of quartz vibration element

Vibration element, vibrator, and method for producing vibration element with a vibrating piece having a protruding part for improved vibration characteristics

KUMANO HIROSHI

Semiconductor device and fabrication method thereof